addition & subtraction without regrouping

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Tags

CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Tags

CCSS.2.OA.A.1

Front

What is the sum of 40 and 20?

Back

60

Tags

CCSS.2.NBT.B.5

Front

What is the difference when you subtract 20 from 40?

Back

20

Tags

CCSS.2.OA.A.1

Front

What is 21 + 42?

Back

63

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is 7 + 28?

Back

35

Tags

CCSS.7.NS.A.1D

Front

What is 8 + 15?

Back

23

Tags

CCSS.1.OA.A.1

Front

What is 10 + 20?

Back

30

Tags

CCSS.2.NBT.B.5

Front

If you have 30 and you take away 10, what do you have left?

Back

20

Tags

CCSS.2.OA.A.1

Front

What does it mean to regroup in addition?

Back

Regrouping in addition means to carry over a value to the next column when the sum exceeds 10.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5