Addition Subtraction Mental Math Strategies created by Gr5AH
Mathematics
3rd - 5th Grade
CCSS covered
Used 14+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most effective method for solving this problem: 28+ 99
partitioning
bridging
re-ordering
compensating
doubles or doubles +/-1
Tags
CCSS.2.NBT.B.7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
28 + 99 =
129
117
127
119
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most effective method for solving this problem: 73 + 32
partitioning
bridging
re-ordering
compensating
doubles or doubles +/-1
Tags
CCSS.2.NBT.B.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
73 + 32
105
51
103
95
Tags
CCSS.1.NBT.C.4
CCSS.2.NBT.B.5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most effective method for solving this problem: 32 + 90 + 10 + 8
partitioning
bridging
re-ordering
compensating
doubles or doubles +/-1
Tags
CCSS.2.NBT.B.6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
32 + 90 + 8 + 10
150
120
130
140
Tags
CCSS.4.NBT.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most effective method for solving this problem: 1.6 + 1.7
partitioning
bridging
re-ordering
compensating
doubles or doubles +/-1
Tags
CCSS.5.NBT.B.7
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