Adding Decimals
.4 + .5 = ?
.9
0.8 - 0.3 = ?
.5
Mariah buys an apple for $.58 and an orange for $.74. How much does she pay for the fruit?
$1.32
Write an equation that is a reasonable estimate of 1.64+3.12
3/5 x 3/4 = ?
9/20
.74 + .4 = ?
1.14
4.5 - 2.3 = ?
2.2
Jonathan walks 2.54 km to the park and then walks 1.7 km to the store. What is the total distance he walks?
4.23 km
Write an equation with a reasonable estimate for
6.32 - 2.91
6 - 3 = 3
2/6 x 4/8 = ?
8/48
1.05 + .25 = ?
1.3
5.3 - 3.86 = ?
1.44
Kathy goes on a 4.5 mile hike. After 1 hour, the trail tells Ruby she hiked 3.14 miles. How much farther does she have to hike?
1.36 miles
Write an equation with a reasonable estimate of
8.8 + 0.9 =
9 + 1 = 10
Compare (greater than, less than, equal)
76.924 76.931
76.924 < 76.931
6.782 + 4.395 = ?
11.177
8 - 6.99 = ?
1.01
Jayla went shopping for school supplies. A binder costs $2.68. A book costs $5. How much MORE does a book cost than a binder?
$2.32
Write a reasonable estimate for 2.83 - 1.19
3 -1 = 2
.4 x 10 = ?
4
52.214 + 34.423 = ?
ESTIMATE TOO!
Answer: 86.637
Estimate: 52+34=86
132.43 - 88.14 = ?
Jessie wants to buy a new coat! The coat costs $89.95 BUT Jessie has a coupon that takes off $10.50 of the original price. How much will the coat costs if Jessie uses his coupon?
$79.45
Write a reasonable estimate for 9.1 - 6.21
9 - 6 = 3
.04 x 1/10 = ?
.004