1.   Estimate. Round to the tens.

A. 30 + 10 = 40 B. 50 + 20 = 70
C. 30 + 20 = 50 D. 20 + 10 = 30
Hint

2.   Find \$45 + \$28.
A. \$73 B. \$17
C. \$83 D. \$63
Hint

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

12 − __ = 12

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

32 + 18 + 40

A. 90 B. 70
C. 100 D. 80
Hint

5.   Estimate. Round to the indicated place value.

221 + 32; tens

A. 200 + 30 = 230 B. 220 + 40 = 260
C. 220 + 30 = 250 D. 230 + 30 = 260
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. \$300 + \$50 = \$350 B. \$200 + \$100 = \$300
C. \$300 + \$100 = \$400 D. \$200 + \$50 = \$250
Hint

7.   Solve.

A. 1,068 B. 1,168
C. 1,158 D. 1,268
Hint

8.   Solve.

A. 8,514 B. 7,154
C. 6,514 D. 7,514
Hint

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

10.   Subtract.

A. 211 B. 271
C. 473 D. 201
Hint

11.   Solve.

A. \$1.90 B. \$0.10
C. \$0.90 D. \$1.10
Hint

12.   Solve.

A. 4,455 B. 4,445
C. 4,355 D. 5,645
Hint