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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 4 - Mathematics
9.12 Multiplying a Decimal by a Decimal

Method:
  1. Multiply ignoring the decimal point and get the product.
  2. Count the number of digits after the decimal point for the first number.
  3. Count the number of digits after the decimal point for the second number.
  4. Add both
  5. Starting from the right most digit for the product, count the total number of digits and place the decimal point.
Example


Directions: Find the product of the following decimal numbers. Also write at least 10 examples of your own.
Q 1: 3.8 x 1000
3.800
38
380
3800

Q 2: 4.6 x 8.6
16.25
43.84
39.56
48.36

Q 3: 1.253 x 100
12.53
125.3
1253
1.253

Q 4: 8.34 x 4.3
4.625
39.421
35.862
32.95

Q 5: 5.3 x 2.7
1431
14.31
1.431
143.1

Q 6: 1.34 x 8.2
1.0957
10.988
1.098
10.878

Q 7: 9.32 x 2.13
1.98516
198.516
1985.16
19.8516

Q 8: 1.23 x 2.5
3.245
3.125
3.075
6.251

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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