Transcript Rounding Numbers

ROUNDING NUMBERS
Remember:
If a number is 4 or lower, round down
If a number is 5 or higher round up
EXAMPLES
Round 29 to the nearest ten
 Underline the 2 because it is in the tens place
 Put a box around the 9, the 9 is the number that
you look at to figure out the rule
 Since 9 is 5 or higher, you would round up
 You will add one to the 2 which makes it a 3 and
every number behind the underlined digit
becomes a 0
 So 29 rounded to the nearest 10 is 30

EXAMPLES
Round 409 to the nearest 100
 You would underline the 4 because it is in the
hundreds place and put a box around the 0
 The 0 is 4 or lower so you would round down
 The 4 will stay the same and every number
behind it will become a 0
 So 409 rounded to the nearest hundred will be
400

EXAMPLES
Round 273 to the nearest ten
 You would underline the 7 because it is in the
tens place and put a box around the 3
 The 2 in the hundreds place would stay the same
because we are not rounding to that place value,
the 3 tells us that we are rounding down so the 7
stays the same and every number behind it
becomes a 0
 So 273 rounded to the nearest ten would be 270

ROUND TO THE NEAREST 10
37
73
85
427
1,735
ROUND TO THE NEAREST HUNDRED
166
551
309
249
4,032
ROUND TO THE NEAREST TEN
15
86
42
55
97
ROUND TO THE NEAREST 10
154
641
901
325
1,508
ROUND TO THE NEAREST HUNDRED
451
203
670
448
952
ROUND TO THE NEAREST HUNDRED
926
1,799
1,008
1,885
1,896
ORDER THE NUMBERS FROM LEAST TO
GREATEST
10,276
24,324
10,129
452,100
516,200
327,000
ORDER FROM LEAST TO GREATEST
343
509
124
798
978
879
2,098
2,077
1,399
FIND THE MISSING NUMBERS IN THE
PATTERNS
4,
7, 10, ____,____,____
12,
3,
15, 18,____,____,____
10, 17,____,____,____