Estimate Sums and Differences
Estimate: 2.9 + 3.9 =
Sample answer: What is 7?
1.03 + 0.36 =
What is 1.39?
7.8 - 4.9 =
What is 2.9?
27 + 0.18 =
What is 27.18?
8.4 + 6.21 + 2.6 =
What is 17.21?
Estimate: 8.1 + 3.7 + 7.9 =
Sample answer: What is 20?
6.9 + 2.8 =
What is 9.7?
$20.60 - $14.35 =
What is $6.25?
0.46 - 0.33 =
What is 0.13?
12.32 - 8 =
What is 4.32?
Estimate: $12.99 - $3.95 =
Sample answer: What is $9?
45.08 + 2.01 =
What is 47.09?
65.18 - 12.05 =
What is 53.13?
5.78 + 16.59 =
What is 22.37?
34.76 + 170 + 16.24 =
What is 221?
Estimate: 788.9 - 572 =
Sample answer: What is 200?
$271.90 + $34.22 =
What is $306.12?
7.09 - 3.65 =
What is 3.44?
4.01 - 2.95 =
What is 1.06?
100.6 + 296.5 =
What is 397.1?
Estimate: 418.5 - 23.7 =
Sample answer: What is 400?
16.62 + 4 + 2.38 =
What is 23?
$72.35 - $6.19 =
What is $66.16?
219.51 + 127.2 + 2.49 =
What is 349.2?
421.2 - 305.8 =
What is 115.4?