1.   Estimate. Round to the tens place.

    A. $70 − $30 = $40 B. $100 − $30 = $70
    C. $80 − $30 = $50 D. $70 − $40 = $30
    Hint

  2.   Kayla wants to buy a DVD movie that costs $23 and a music CD that costs $18. She has $32. About how much more money does she need to buy the items?
    A. about $30 more B. about $20 more
    C. about $5 more D. about $10 more
    Hint

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

24 + ∅ = 18 + 24

    A. 0; Identity Property of Addition
    B. 18; Commutative Property of Addition
    C. 18; Associative Property of Addition
    D. 6; Subtraction Rule
    Hint

  4.   Add mentally.

13 + 21 + 17

    A. 51 B. 41
    C. 50 D. 60
    Hint

  5.   Estimate. Round to the indicated place value.

1,478 + 209; hundreds

    A. 1,400 + 200 = 1,600 B. 1,500 + 200 = 1,700
    C. 1,600 + 200 = 1,800 D. 1,480 + 210 = 1,690
    Hint

  6.   Estimate. Round to the indicated place value.

42,420 − 5,789; thousands

    A. 42,000 − 6,000 = 36,000 B. 50,000 − 5,000 = 45,000
    C. 42,000 − 5,000 = 37,000 D. 50,000 − 6,000 = 34,000
    Hint

  7.   Find the sum.

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

  8.   Find the sum.

    A. $92,427 B. $93,427
    C. $91,227 D. $92,317
    Hint

  9.   Find 489 − 399.
    A. 190 B. 80
    C. 180 D. 90
    Hint

  10.   Find the difference.

    A. 4,653 B. 3,657
    C. 4,943 D. 4,643
    Hint

  11.   Find the difference.

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

  12.   On Sunday there were 1,415 people at the circus. On Monday, there were 823. How many more people were at the circus on Sunday than on Monday?
    A. 2,238 B. 692
    C. 592 D. 602
    Hint