1.   Grayson ran 23 miles in his first week of an exercise program. The second week, he ran 28 miles. How many miles did he run altogether?
A. 51 miles B. 61 miles
C. 41 miles D. 52 miles
Hint

2.   Find 51 − 23.
A. 18 B. 38
C. 28 D. 74
Hint

3.   Find the number that completes the number sentence. Then identify the property or rule.

43 + ∅ = 43

A. 0; Associative Property of Addition
B. 12; Subtraction Rule
C. 0; Commutative Property of Addition
D. 0; Identity Property of Addition
Hint

18 + 41 + 12

A. 71 B. 82
C. 61 D. 81
Hint

5.   Estimate. Round to the indicated place value.

\$72 + \$12; tens

A. \$70 + \$15 = \$85 B. \$70 + \$10 = \$80
C. \$75 + \$12 = \$87 D. \$80 + \$10 = \$90
Hint

6.   Logan wants to save for a video game system. The table shows what each costs. About how much will he have to save?

 Item Cost Game system \$209 Game \$49

A. \$200 + \$50 = \$250 B. \$300 + \$100 = \$400
C. \$300 + \$50 = \$350 D. \$200 + \$100 = \$300
Hint

7.   Find the sum.

A. 403 B. 303
C. 393 D. 503
Hint

8.   Find the sum.

A. 816 B. 916
C. 826 D. 806
Hint

9.   Which of the following differences will need regrouping when you subtract?
A. 778 − 578 B. 772 − 571
C. 772 − 578 D. 778 − 508
Hint

10.   Find the difference.

A. 4,254 B. 5,254
C. 5,256 D. 5,264
Hint

11.   Find the difference.

A. 159 B. 59
C. 141 D. 61
Hint

12.   Subtract.

A. 328 B. 418
C. 318 D. 317
Hint