Addition 3rd Grade

Double Digit Addition

100

12+25=

What is 47?

200

36+38=

What is 74?

300

58+65=

What is 123?

400

87+96=

What is 183?

500

63+128=?

What is 191?

Addition Patterns

100

1 more than 75

What is 76?

200

2,343; 3,343; 4,343; 5,343 Pattern: Adding ____

What is 1,000?

300

495, 505, 515, ___, ___, 545 Pattern: Adding ____

What is 525, 535, and 10's?

400

10 more than 723 100 more than 723 1,000 more than 723

What is 733, 823, 1,723?

500

1,000 more than 9,876 100 more than 9,876 10 more than 9,876

What is 10,876; 9,976; 9,886?

Vocabulary

100

Doing math in your head.

What is mental math?

200

This tells you which operations to group in a number sentence.

What are parentheses?

300

A number close to its actual value

What is an estimate?

400

The missing number or what you are solving for in a problem

What is the unknown?

500

To use place value to exchange equal amounts when renaming a number.

What is regrouping (to regroup)?

Subtraction

100

15-9=

What is 6?

200

26 - 12 =

What is 14?

300

37 - 28 = 

What is 9?

400

76 - 52 = ?

What is 24?

500

86 - 39 = ?

What is 47?

Addition

100

192 + 464

What is 656?

200

387 + 251

What is 638?

300

834 + 73=

What is 907?

400

348 + 265 = 

What is 613?

500

1,205 + 366 = 

What is 1,571?