Estimation
Adding decimals
Subtracting decimals
Multiplying
Decimals
Dividing
Decimals
100
10.3-5.4
10-5=5
100
27.3+2.6
29.9
100
100.4-100.3
0.1
100
2.5*8.9
22.25
100
52.6/2
26.3
200
12.7-6.9
13-7=6
200
23.2+8.3
31.5
200
32.6-24.5
8.1
200
25.5*25.5
650.25
200
22.4/2
11.2
300
23.6+7.9
31.5
300
34.6-27.9
7.1
300
7.2*7.3
52.56
300
35.5/5
7.1
400
37.3-21.6
37-22=15
400
25.6+11.5
37.1
400
92.3-2.3
90
400
5.7*3.9
22.23
400
8.3/4
2.075
500
39.5+41.6
40+42=82
500
46.75+23.4
70.15
500
22.3-17.7
4.6
500
23.5*2.6
61.1
500
45.6/3
15.2
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