Transcript DV_Math-Olympics

Math Olympics
[Date]
2nd Grade
Greenbriar West Elementary
By Darren McKnight
Math Olympics
• There are 12 different rounds
– Every round of questions has three sets of questions that are regular
questions (each one worth one point) and one set of Bonus questions
(worth more points)
• Provide the sheets to the children in two packets of six sheets
each.
– When finished with the first packet turn their packet in and they then
pick up the second packet
• Will go for 50-60 minutes before we stop
• Will award a gold, silver, and bronze medal
– Ribbons for all participants
Math Olympics Rounds
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Numbers and Graphing
Addition and Subtraction Concepts
Addition and Subtraction Strategies
Number Patterns to 100
Money
Time
Two-Digit Addition and Subtraction
Number Patterns to 1,000
Fractions
Olympic Scoresheet
Name
NG
AC
SC
AS
SS
100
$$$
Time
2A
2S
1,000
Frac
Total
Olympic Scoresheet
Name
NG
AC
SC
AS
SS
100
$$$
Time
2A
2S
1,000
Frac
Total
Numbers and Graphing (NG)
Name
•Joe has
. How many
spiders does Joe have?_______
•Tom has
and Mary
has
. Who has more ? ____
---------------------------------------------------•How many rockets are there in the picture
below? ______
•Are there more cars than rockets? _____
Complete the patterns below:
1, 2, 3, 4, 5,__, __
2, 4, 6, 8, 10, __, __
5, 10, 15, 20, __, __
3, 7, 11, 15, __
1, 3, 5, 7, 9, __, __
3, 6, 9, 12, 15, __
Grace
Katie
Anna
Mark
Using the graph above:
-Who has the most cars?_______
-Does Katie have more cars than Grace? _____
-Who has the least cars? ______
-How many cars the four kids
have all together? ____
BONUS (2pts for each row)
•Joe has 6 dogs, Colin has 4 cats, and
Jeremy has 5 hamsters. Draw bar graph
showing the facts above.
Number of Pets
Addition Concepts (AC)
Name
•Dan has
and then gets
more for Christmas. How many stuffed
rabbits does Dan have? ______
•How many dark cubes are shown? _____
+
-Frederick has
and Ben gives
him
. How many spiders does
Frederick have? ______
•Edom has
and then gets
more for Christmas. How many
cats does Edom have? ______
•How many dark cubes are shown? _____
+
-Mark has
and Ben gives
him
. How many cars does
Mark have? ______
-Katie has a domino
and
Miraj has a domino
. What
are the total number of dots on
these two dominos? _______
-Ms. Hosey’s class went to Pizza Hut for
lunch and they ordered two cheese pizzas and
two pepperoni pizzas. How many pizzas did
they order? _______
BONUS (3pts each)
-Hannah scored 2 goals in soccer on Saturday
morning and then scored 3 more goals in a game
on Saturday afternoon. Finally, on Sunday she
scored 4 more goals. How many goals did
Hannah score over the weekend? ______
-Justin ate two tacos, three burritos, and three
tostados. How many things did Justin eat? _____
-Ms. Hosey has no babies. In May she will have
one. How many babies will Ms Hosey have? ____
Name
Subtraction Concepts (SC)
•Joy has
and then gives
to Joanna. How many stuffed rabbits
does Joy have left? ______
•How many dark cubes are left? _____
Take away
-Bruce has
and then gives
Tom
. How many spiders does
Bruce have left? ______
•Stephanie has
and then
gives
to Joe for Christmas. How many
cats does Stephanie have left? ______
•How many dark cubes are left? _____
Take away
-Chip has
then gives
Jim
. How many cars does
Chip have left? ______
•Jim had five cookies and he gave two
to his friend Joe. How many cookies
does Jim have left? ____
•Pallu had ten marbles in her pocket
when she left for school but she
dropped six while walking to school.
How many did she have left? ____
BONUS (3pts each)
•Grace had 12 grapes in her lunch.
She gave three grapes to each of
four of her friends. How many grapes
did she have left for her lunch?____
•Mary ate three candies. She now has
four candies. How many did she
start with? _____
Addition Strategies (AS)
Name
•Sue has six pretzels. Mark gave
her five more pretzels. How
many pretzels does she have
all together?_____
•Ben has five pencils then he got
four more for his birthday. How
many pencils does he
have now? _____
7
+1
7
+6
7
+8
7
+5
7
+2
6+2=____ 8+3=____
6+4=____ 8+6=____
6+5=____ 8+2=____
7
6
8
7
+8 +8 +8 +6
7
+7
4+2=____
7+2=____
6+2=____
4
6
+5 +4
1
+1
1
+6
1
+8
1
+5
1
+2
1
+7
2+2=____ 3+3=____ 4+4=____
5+5=____ 6+6=____ 7+7=____
4+3=____ 5+2=____ 6+1=____
7
6
8
7
4
6
+3 +2 +0 +1 +2 +3
BONUS (2pts each)
•Amanda had 12 baseballs but then
Jimmy and Louise each gave her
two more baseballs each.
How many baseballs does Amanda
have now? ___
•Tony had 12 raisins with lunch then
3 raisins with his snack. How many
raisins did Tony have? _____
Subtraction Strategies (SS)
Name
•Mr Hilkert had five awards to
give out at the assembly. He gave
three awards to the first grade.
How many awards does he have
left to give out? _____
•Olivia had ten bagels but she gave
two to her sister. How many
does she have left? ____
4
-1
7
-6
6
-4
8
-5
3
-2
8
-7
2-2=____
3-3=____ 4-4=____
5-4=____ 6-4=____ 7-4=____
4-3=____
5-2=____ 6-1=____
7
6
8
7
4
6
-3 -2 -0
-1
-2
-3
5
-1
8
-6
7
-4
5
-5
7
-2
9
-7
2-1=____
3-1=____ 9-4=____
5-1=____ 6-1=____ 9-3=____
4-1=____
5-4=____ 9-1=____
9
9
9
8
7
4
-3
-2
-0
-1
-2
-3
BONUS (3pts each)
•Emily had 14 valentines then she gave
3 to Grace, 2 to Louise, and 6 to Ava.
How many does she have left? _____
•During the day it was 40 degrees but
during the night the temperature
went down 15 degrees. How cold was
it at night?_____
Name
Numbers Patterns to 100 (100)
Fill in the blanks below:
10, 20, 30, ___, 50, 60, ___
15, 30, 45, 60, __, 90
45, 50, ___, 60, 65, ___
90, 92, 94, 96, ___, 100
71, 73, 75, 77, 79, ___, ___
20, 30, 40, ___, 60, ___
•Pallu had 50 baseball cards then
she got 20 more baseball cards for her
birthday. How many cards does
Pallu have now? ____
•Grace had 10 pencils, Hannah had
30 pencils, and Amanda had 40
pencils. How many pencils do they
have all together? ______
Count from zero to 100
BONUS (3pts each)
by 5’s:
•Nitya had 30 marbles but she lost 10. How
0, 5, ___, 15, ___, ___, 30, ___, many marbles does Nitya have left? _____
40, ___, ___, ____, 60, 65, ___
50
40
30
eggs
75, ___, ____, ____, 95, 100
cookies
apples
10
20
lemons
Count from zero to 100 by 10’s:
bagels
•From the picture above of things your Dad
0, 10, ___, ___, ___, 50, ___,
buys from the grocery store, circle three items
70, ___, ____, 100
that add up to 100 things.
Money ($$$)
Name
*How much money is shown below? ____
-How many pennies are needed to make ten cents?
________
-How many nickels are needed to make ten cents?
________
-How many dimes are needed to make ten cents?
________
*Circle the coins that add up to 12 cents.
5
If Mark had 5
and Mickey had
5
5
25c
10
5
Circle the number of nickels equal to 2 dimes.
5
5
5
5
5
5
BONUS (2pts each)
5
25c .
-Who has the most money? ____
-How much money do they have
all together? ______
•If you bought a pencil for 30 cents, using
50 cents, how much change would
you get? ____
•How many nickels are in one quarter? ___
•Circle the fewest number of coins to
make 37 cents?
5
10
25c 5
5
Time (Time)
Name
:
Write the
time under
each clock.
:
Write the
time beside
each clock.
:
:
:
:
:
•Ms Hosey went to the GBW
carnival. The table below shows
what she did.
Started
Finished
Dunk Tank
9:10
9:20
Moon Bounce
9:20
9:40
Monster Slide
9:40
10:00
Tug of War
10:00
10:30
At what event did she spend the most time? ______
At what event did she spend the least time? ______
How long was she in the moon bounce? _________
BONUS (2pts each)
•Draw the time on the
clock for 1:50.
•Ben got to school at 9:15am. He left to go
home 15 minutes later since he did not feel
well. What time did he go home? _____
•Taylor left Taco Bell at 1:30. He took
20 minutes to eat there. What time had he
arrive at Taco Bell? ____
Two-Digit Addition (2A)
Name
Fill in the blanks:
44+___ = 64
30+___= 50
___+30 = 70
19+___ =69
5 tens + 2 tens = ____ tens
50 + 20 = ____
Write the number sentence that
is the same as
+
=
•Mr. Hilkert brought ten friends
to dinner while Mr. Rice brought
fifteen friends to dinner. How many
friends total did Mr. Rice and Mr.
Hilkert bring to dinner? _____
•A dozen is the same as “12”. Mickey
brought in one dozen cookies and Ava
also brought in a dozen cookies. How
many cookies did they have total? _____
35 40
14 30 60 70
+22 +36 +53 +24 +30 +22
42+20=___
27+50=___
29+10=___
64+30=____
14+23=____
52+50=____
BONUS (2pts each)
47 14
36 67 77 19
+25 +36 +56 +24 +34 +22
•Mr. McKnight ate 10 donuts, Mrs.
McKnight ate 15 donuts, and Olivia
McKnight ate 10 donuts. How many
donuts did the McKnights eat? _____
Two-Digit Subtraction (2S)
Name
Fill in the blanks:
44 -___ = 24
30 -___= 10
___- 30 = 20
69 -___ = 29
6 tens - 3 tens = ____ tens
60 - 30 = ____
Write the number sentence that
is the same as
=
-
14
-11
17
-12
26
-14
22-12=____
35-14=____
44-23=____
27
-13
28
-25
43
-22
58
-37
63-33=____ 42-14=____
61-43=____ 72-44=____
50-24=____ 61-16=____
56 38 70 54
60
-12 -20 -41 -32 -23
35
-22
40
14 30
-36 -13 -24
42-20=___
27-10=___
29-10=___
60
70
-30 -22
64-30=____
14-13=____
52-50=____
BONUS (2 pts each)
42-25=___
25-17=___
26-18=___
64-37=____
24-16=____
42-25=____
Name
Numbers to 1000 (1000)
•Edom had 500 marbles, Shreati
had 300 marbles, and Anna had
100 marbles. How many marbles
do they have all together? _____
•Every time Jeremy mows the yard
his father gives him $200. If he
mows the yard two times, how much
money does he get? _____
Complete the patterns below:
100, 200, 300, 400, 500,___, ___
200, 400, 600, 800, _____
850, 900, 950, _____
300, 500, ____, 900
100, 300, 500, ____, 900
150, 350, 550, 750, ____
400
600
+200 +300
700 150
+300 +500
100 + 200 + 500 = _____
300 + 300 + 100 = _____
200 + 100 + 600 = _____
BONUS (4pts)
The three sticks above have the lengths
marked on them. If you laid them
end-to-end, how long would they be
all together? ______
Name
Fractions (Frac)
•The stick below is divided into
equally sized pieces. What fraction
of the stick is each section? _____
•If a block is broken into four pieces. If
you have two of these pieces then what
fraction of the total block
do you have? _____
•Circle the largest fraction:
1
1
1
2
3
4
•There are ten students in a class.
If five students left for strings,
what fraction of the class stayed
in the classroom?
1
1
1
5
3
2
•If you break a cookie into two equal
pieces, what is each part called?
(circle one) one-quarter one-half
•What is each part of the circle below
called?
1
1
1
4
2
3
(circle one)
BONUS (2pts each)
•A pizza is cut into six pieces. If you
eat three pieces of pizza, what fraction
of the pizza did you eat? _____
•At your birthday party your mother
cut your cake into eight pieces. At
the end of the party there were two
pieces left. What fraction of the cake
was left over? _____