1.
Find the difference.
A.
34
B.
50
C.
35
D.
33
Hint
2.
Find 51 − 23.
A.
74
B.
28
C.
18
D.
38
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
4.
Add mentally.
13 + 21 + 17
A.
41
B.
60
C.
51
D.
50
Hint
5.
Estimate. Round to the indicated place value.
221 + 32; tens
A.
230 + 30 = 260
B.
220 + 40 = 260
C.
200 + 30 = 230
D.
220 + 30 = 250
Hint
6.
Estimate. Round to the indicated place value.
$72 + $12; tens
A.
$80 + $10 = $90
B.
$70 + $10 = $80
C.
$75 + $12 = $87
D.
$70 + $15 = $85
Hint
7.
Find the sum.
A.
1,168
B.
1,268
C.
1,158
D.
1,068
Hint
8.
Find the sum.
A.
$92,317
B.
$93,427
C.
$92,427
D.
$91,227
Hint
9.
Find 540 − 350.
A.
190
B.
210
C.
110
D.
200
Hint
10.
Find the difference.
A.
$162
B.
$58
C.
$158
D.
$168
Hint
11.
Find the difference.
A.
476
B.
436
C.
440
D.
376
Hint
12.
Find the difference.
A.
159
B.
141
C.
61
D.
59
Hint