Transcript Ten Minute Math

Warm Up
1. 32 x 4 =
3. The table below shows how many pumpkins are in
each case.
Number of
Cases
Number of
Pumpkins
4
48
8
96
16
192
32
How many pumpkins are in 32 cases?
2. 944 ÷ 4 =
4. The Davis family purchased 8,786
pieces of candy to hand out on
Halloween night. If they gave one
piece of candy to each kid that came
by, how many kids did they give candy
to if they had 2,597 piece of candy
left?
Ten Minute Math
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Ten Minute Math
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Randi, at 15, is three times as old as her younger
sister, Misty. Randi is using this recipe card to
bake a cake to surprise her younger sister.
CAKE
Preheat oven to 350 degrees F.
In a large bowl mix:
1/2 cup butter or margarine
3 eggs
1 cup sugar
1 cup applesauce
Add: 4 cups flour
2 teaspoons baking powder
½ teaspoon salt
3 teaspoon vanilla
Pour into greased pan and bake:
________________________________
Pan Size
Number of Minutes
9 X 13
35 min
8 in. square
42 min
Cupcakes
28 min
1. If Randi triples the recipe,
how many eggs will she
need?
Ms. Santos’s Apples
Solve the following problems in your math notebook:
As you work on these problems, think about the relationship between
them. How are these two problems the same? How are they
different? What do the arrays or pictures that you draw for each
problem show you about the relationship?
After 10 mins.: Share and record representations of the problems on
chart paper.
Ms. Santos’s Apples
Possible Solutions:
168 ÷ 28= 6
28
28
28
28
28
28
168 ÷ 14=12
14
14
14
14
14
14
14
14
14
14
14
14
6 x 28=168
12 x 14=168
6
6
14
28
When Ms. Santos found that she could put only 14 apples in a box,
how did that change the number of boxes she needed?
What do you know about the numbers 28 and 14?
What do you notice about your solutions to these two problems?
6
Ms. Santos’s Apples
Possible Solutions:
1. 168 ÷ 28= 6
28
28
28
28
28
28
168 ÷ 14=12
14
14
14
14
14
14
14
14
14
14
14
14
2.
6 x 28=168
12 x 14=168
6
6
6
14
28
How does solution 1 show what happens to the number of boxes?
How does solution 2 show what happens when the size of the boxes is
cut in half?
Would this ides work with other numbers? What if we wanted to pack
168 apples in even smaller boxes that hold only 7 apples?
What do you think would happen to the number of boxes?
Independent Work: Related Problems about
Doubles and Halves
Complete Student Activity Pages 53 and 54
Problems 1a-f: Solve the problem in each pair, and then use that answer to
help solve the second problem.
As you look at the two problems, notice whether one factor in the second
problem has been doubled or halved.
Look carefully at each pair because the second problem does not always
change in the same way. Think of each problem pair in the story context of
apples in boxes.
Math Menu: Once your paper is complete: Play Multiplication Migration in
groups no larger than 4.