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

  2.   Find the difference.

    A. $15 B. $14
    C. $33 D. $16
    Hint

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

(21 + 13) + 56 = 21 + (∅ + 56)

    A. 13; Commutative Property of Addition
    B. 13; Associative Property of Addition
    C. 35; Subtraction Rule
    D. 21; Identity Property of Addition
    Hint

  4.   Add mentally.

51 + 22 + 9

    A. 82 B. 92
    C. 81 D. 72
    Hint

  5.   Estimate. Round to the indicated place value.

$82 − $41; tens

    A. $80 − $40 = $40 B. $90 − $45 = $45
    C. $80 − $50 = $30 D. $90 − $40 = $50
    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?

ItemCost
Game system$209
Game$49

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

  7.   Find the sum.

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

  8.   Find the sum.

    A. $30,696 B. $31,696
    C. $41,696 D. $40,696
    Hint

  9.   Find the difference.

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

  10.   Find the difference.

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

  11.   Find the difference.

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

  12.   Subtract.

    A. 142 B. 242
    C. 152 D. 252
    Hint