Multiplication and division (2)

Multiplying decimals

Name: ______________________________Date: ______________Score: ______ / 20

1.
Calculate 45.1 × 5.
2.
Find the product of 6 and 34.56.
3.
Calculate 2.5 × 6.
4.
Estimate 45.75 × 63 by rounding to 50 × 60. What is the estimate?
1. A300
2. B3000
3. C2800
4. D30000
5.
Calculate 45.75 × 60.
6.
Calculate 74.36 × 15.
7.
Calculate 23.08 × 83.
8.
Meals cost $15.25 each. 12 people go for a meal. What is the total cost in dollars?
$
9.
A pack of stickers costs $11.50. How much do 3 packs cost in dollars?
$
10.
Estimate 17.05 × 15 as about 17 × 15 = 255. Which of these is the sensible exact answer?
1. A25.575
2. B255.75
3. C2557.5
4. D2.5575
11.
0.98 × 36 is about 1 × 36 = 36, so an answer of 35.28 is sensible.
True False
12.
Work out each product, then put them in order from smallest to largest.
Write the order (smallest to largest) in the boxes:
- ?2.5 × 6
- ?3.25 × 4
- ?12.5 × 4
13.
45.1 × 5: the estimate is 45 × 5 = 225. What is the exact answer?
1. A225.5
2. B2255
3. C22.55
4. D2.255
14.
Calculate 7.4 × 16.8.
15.
Calculate 16.1 × 10.5.
16.
Calculate 6.8 × 9.9.
17.
Calculate 16.8 × 5.3.
18.
Calculate 19.6 × 16.
19.
Calculate 3.3 × 6.5.
20.
Calculate 3.5 × 3.9.

Answer key

Multiplication and division (2) — Multiplying decimals