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Mental Addition and Subtraction

Authored by Anthony Clark

Mathematics

3rd Grade

CCSS covered

Mental Addition and Subtraction
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Compatible numbers for addition and subtraction are numbers that do what?  Numbers that equal tens or hundreds are the most common examples. 

Easily combine to equal benchmark numbers

Combine to equal benchmark numbers but with more difficulty

Do not really exist

Tags

CCSS.2.NBT.B.5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the name of the strategy that can use for solving problems with multidigit numbers, an amazingly powerful way to subtract and is particularly successful with students with disabilities?

Adding single-digit numbers

Subtracting single-digit numbers

Think-addition strategy

Tags

CCSS.1.OA.A.1

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

When we add two numbers and do the addition we use the symbol

+

-

=

x

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Taking away a smaller number from the big number is called

addition

subtraction

Tags

CCSS.2.OA.A.1

5.

FILL IN THE BLANK QUESTION

1 min • 5 pts

9 + 8 =

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

6.

FILL IN THE BLANK QUESTION

1 min • 5 pts

37 + 5 =

Tags

CCSS.2.NBT.B.5

7.

FILL IN THE BLANK QUESTION

1 min • 5 pts

10 - 8 =

Tags

CCSS.1.OA.C.6

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