Adding and Subtracting Whole Numbers

Vocab/Reasoning

100

The answer to an addition problem

What is sum?

200

What operation is "difference"

Subtraction

300

What operation is "find the total"

Addition

400

What operation is "all together"

Addition

500

Can I solve the problem 18-27? If not, what should I do?

No. I need to put the larger number on top.

Adding

100

57+22=

79

200

632 + 661

1,293

300

5,647+854 =

6,501

400

3,965 + 11,357 =

15,322

500

32,789 + 65,382 =

98,171

Subtracting

100

93-32=

61

200

645-237=

408

300

500-78

422

400

9,000-5,637=

3,363

500

8,000- 4,678=

3,322

Properties

100

23 + 84= __ + 23

84; commutative property

200

75+___ = 75

0; Zero Property

300

3+(9+2)=___+(3+9)

2; Associative Property

400

53 + 92 = __ +53

92; commutative property

500

14+(4+5) = (5+_)+4

14; Associative Property

Review

100

189 written in expanded form

100 + 80 + 9

200

The digit in the thousands place: 16,345

6

300

The value of the digit in the hundreds place: 53,636

600

400

5,643 rounded to the nearest hundred

5,600

500

17,943 rounded to the nearest ten-thousand

20,000