1.
Estimate. Round to the tens place.
A.
50 + 20 = 70
B.
30 + 20 = 50
C.
20 + 10 = 30
D.
30 + 10 = 40
Hint
2.
Estimate. Round to the tens place.
A.
$70 − $30 = $40
B.
$70 − $40 = $30
C.
$80 − $30 = $50
D.
$100 − $30 = $70
Hint
3.
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 $10 more
C.
about $5 more
D.
about $20 more
Hint
4.
Find the sum.
A.
82
B.
81
C.
71
D.
17
Hint
5.
Find $92 − $53.
A.
$39
B.
$29
C.
$49
D.
$145
Hint