WS 9.9 Estimate sums and differences with Mixed Numbers
Book # ______ Name: ______________________________
Estimate. Show your rounding.
5
3
8
10
1) 2 + 1
3
1
5
4
8) 19
25
9) 13
72
71
− 15
28
=
63
=
139
+9
43
108
=
2) 3 − 2 =
10) 6
3) 7
4) 6
1
12
7
6) 10
7) 8
11
14
89
−2
63
115
=
=
11) 17
27
12) 17
29
54
+5
31
49
=
1
18
5) 13
+5
47
−3 =
4
4
27
47
51
35
69
+9
−6
+ 14
31
58
21
56
13
27
56
−9
54
109
=
=
13) 64
13
14) 96
14
25
+ 37
11
21
=
=
=
15
5
− 89 =
6