Estimate
Best estimate of the expression.
5 x $4.31 =
5 x $5 =$25
Multiply.
3.8 x 7 =
3.8 x 7 =26.6
Divide
84.6 ÷ 18 =
84.6 ÷ 18 = 4.7
Divide.
6.38 ÷ 10 =
Divide.
6.38 ÷ 10 = 0.638
Divide.
8.64 ÷ 2.4 =
8.64 ÷ 2.4 = 3.6
Estimate.
$17.24 x 6 =
Sample Answer(s):
$120 **
$200
Multiply.
4.62 x 0.5 =
4.62 x 0.5 =2.31
Divide. Round to the nearest tenth if necessary.
138.5 ÷ 16 =
138.5 ÷ 16 =8.656 which is about 8.7
Divide.
45.7 ÷ 100 =
45.7 ÷ 100 = 0.457
Divide.
3.375 ÷ 0.75 =
3.375 ÷ 0.75 = 4.5
Best Estimate. (using easy mental math)
A smoothie shop sells 389.7 ounces of juice each week.
About how many ounces of juice will they sell in 4 weeks?
400 x 4 =1,600 ounces
Multiply. Round to the nearest cent.
Jasmine is buying a notebook that costs $2.45.
The sales tax is found by multiplying the cost of the notebook by 0.08.
What is the sales tax on the notebook?
$2.45 x 0.08 =$0.196 which is about $0.20
Divide.
38.6 ÷ 1000 =
38.6 ÷ 1000=0.0386
Divide.
12.48 ÷ 0.32 =
12.48 ÷ 0.32 = 39
Estimate.
55.3 ÷ 9
54 ÷ 9 =6
Multiply.
6.48 × 1,000 =
6.48 x 1,000 =6,480
Divide.
Ava drove 297.6 miles to visit her cousin. Her car used 6.2 gallons of gas.
How many miles per gallon did Ava’s car get?
297.6 ÷ 6.2=48 miles per gallon