Estimation
Whole # x Decimal
Decimal x Decimal
Multiples of 10
Word Problems
100

The estimated product of 0.99 x 0.09

What is about 0.1?

100

The product of 3 x 4.3

What is 12.9?

100

The product of 0.4 x 0.6

What is 0.24?

100

The product of 3.5 x 10

What is 35?

100

Casey wants to buy 4 boxes on cereal. Each box costs $1.20. How much will she spend?

What is $4.80?

200

The estimated product of 0.67 x 3.8

What is about 2.8?

200

The product of 2.1 x 7

What is 14.7?

200

The product of 0.9 x 0.3

What is 0.27?

200

The product of 53.67 x 100

What is 5,367?

200

Jarrett bought 5 cases of watch for $3.50 each. How much was the total amount of water?

What is $17.50?

300

The estimated product of 11.5 x 7.4

What is about 84?

300

The product of 6 x 4.5

What is 27?

300

The product of 2.7 x 0.3

What is 0.81?

300

The product of 45.8 x 103

What is 45,800?

300

If Kelly bought 2 sodas for $2.50 each while Kyle bought the popcorn at $6.20. Who spent more and by how much?

What is Kyle spent $1.20 than Kelly?

400

The estimated product of 0.67 x 0.52.

(Round to the nearest tenth)

What is 0.35?

400

The product of 430 x 3.8

What is 1,634?

400

The product of 4.2 x 0.02

What is 0.084?

400

The product of 324.87 x 104

What is 3,248,700?
400

Lilly bought 2 cartons of milk for $2.03 and 2 boxes of cereal for $1.20. How much did she spend?

What is $6.46?

500

The estimated product of 9.01 x 0.17

What is about 1.8?

500

The product of 902 x 0.82

What is 739.64?

500

The product of 0.45 x 0.54

What is 0.243?

500

The product of 1,32.323 x 10,000

What is 1,323,230?
500

Cory spent $16.10 on food at the market, but still has to pay the sales tax of 7%. How much is the sales tax of his total?

What is about $1.13?

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