Share 3rd Grade Mod 9 IntoMath (Addition/Subtraction Strategies)
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Brielle has 236 Skittles. She uses 82 of those Skittles on her gingerbread house roof and 23 on the windows. How many Skittles does she have left?
131 Skittles
Associative Property of Addition
Commutative Property of Addition
C and D
Round 189 to the nearest 10
190
Round 299 to the nearest 10
300
Round 467 to the nearest hundred.
500
Round 529 to the nearest 100.
500
Round 63 to the nearest ten.
60
Which of these is another way to add 489 + 134?
500 + 200
400 + 100
500 + 100
400 + 200
What is 372 rounded to the neareset 100 and neareset 10?
400 and 380
300 and 380
400 and 370
300 and 370
What is the unknown number in this equation? 12 + _____ = 12
0
What is a reasonable estimate of the sum of 624 + 45?
700 + 40 = 740
625 + 50 + 675
600 + 0 = 600
700 + 50 = 750
What has the same value as 63 + (21 + 14)?
(63 + 21) + 14
(63 - 21) - 14
63 + 14 - 21
(63 x 21) + 14
Add: 247 + 56 + 198
501
Olivia uses friendly numbers to subtract. How should she adjust the difference? 355 - 49 = 355 - 50 + _____
1
Miss Barmettler is sorting counters for math class. She counts them in groups like this: 6, 12, 18. What are the next 3 numbers using the same pattern?
24, 30, 36
