1. Round to the nearest ten. Estimate the sum. 39 + 33

1.
Round to the nearest ten. Estimate the sum.
39 + 33
A.
C.
2.
60
80
B.
D.
50
70
Round to the nearest ten. Estimate the sum.
24 + 22
A.
C.
3.
50
40
B.
D.
60
70
Find the sum.
9+4
A.
C.
4.
14
13
B.
D.
11
12
Sam has 3 red pencils. Lu has 4 purple pencils. Mari has 2 blue pencils.
How many pencils do they have altogether?
A.
C.
7
8
B.
D.
10
9
5.
Find the sum.
2 tens + 6 tens = ___ tens
A.
C.
6.
6
9
B.
D.
7
8
Find the sum.
60 + 10 = ___
A.
C.
7.
70
B.
D.
90
50
Find 2 + 54 .
A.
C.
8.
80
55
56
B.
D.
54
57
Find 81 + 8.
A.
C.
87
86
B.
D.
88
89
9.
Find 75 + 3.
A.
C.
76
77
B.
D.
79
78
10. Find 31 + 7.
A.
C.
36
38
B.
D.
35
37
11. Find the sum.
49 + 4
A.
C.
52
54
B.
D.
53
55
12. Find the sum.
28 + 6
A.
C.
34
35
B.
D.
33
36
13. Find the sum.
33 + 29
A.
C.
64
62
B.
D.
52
54
14. Find the sum.
39 + 25
A.
C.
53
64
B.
D.
54
63
15. Find the sum.
16 + 26 + 51
A.
C.
90
83
B.
D.
92
93
16. Find the sum.
27 + 32 + 33
A.
C.
89
95
B.
D.
92
82