NAME _____________________________________________ DATE __________________ PERIOD _________
Lesson 3 Homework Practice
Multiply Decimals by Whole Numbers
Multiply.
1. 0.8 × 6
2. 0.7 × 4
3. 1.9 × 5
4. 3.4 × 9
4.8
2.8
9.5
30.6
5. 6 × 3.4
6. 5.2 × 9
7. 0.6 × 6
8. 4 × 0.8
20.4
46.8
3.6
3.2
9. 5 × 0.05
10. 3 × 0.029
11. 0.0027 × 15
12. 0.0186 × 92
0.25
0.087
0.0405
1.7112
13. 6 × 0.06
14. 2 × 0.037
15. 0.015 × 15
16. 0.45 × 45
0.36
0.074
0.225
20.25
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17. ERASERS Vernon buys 12 pencil erasers. Each costs $0.85. How much does
Vernon spend on the erasers before tax? $10.20
18. SOUP Hot ’n Spicy Soup costs $2.39 a can. Brand X Soup costs $1.93 a
can. Which costs more, 10 cans of Hot ’n Spicy, or 12 cans of Brand X?
What is the difference? 10 cans of Hot ’n Spicy; $0.74
19. SHOPPING Basketballs sell for $27.99 each at the Super D and for $21.59
each at the Bargain Spot. If the coach buys a dozen basketballs, how
much can he save by buying them at the Bargain Spot? Justify
your answer. $76.80; $27.99 × 12 = $335.88,
$21.59 × 12 = $259.08, $335.88 - $259.08 = $76.80
20. SCHOOL Jaimie purchases 15 pencils at the school bookstore. They cost
$0.30 each. How much did she spend on pencils? $4.50
Course 1 • Chapter 3 Compute with Multi-Digit Numbers
39