Multiplying and Dividing Decimal Fractions by 10, 100, etc.: Multiplication by numbers greater than 100

Examples with solutions for Multiplying and Dividing Decimal Fractions by 10, 100, etc.: Multiplication by numbers greater than 100

Exercise #1

1.23×110= ? 1.23\times110=\text{ ?}

Video Solution

Step-by-Step Solution

We will use the distributive property to split 110 into two numbers—100 and 10. 

Now we will multiply the original number (1.23) by these two numbers:

1.23*100=123

1.23*10=12.3

 

All that is left to do is to add the two products together to get our answer:

123 + 12.3 = 135.3

Answer

135.3 135.3

Exercise #2

0.15×200= 0.15\times200=

Video Solution

Answer

30 30

Exercise #3

0.4×115= 0.4\times115=

Video Solution

Answer

46 46

Exercise #4

1.23×180= 1.23\times180=

Video Solution

Answer

221.4 221.4

Exercise #5

0.113×170= 0.113\times170=

Video Solution

Answer

19.21 19.21

Exercise #6

14.6×150= 14.6\times150=

Video Solution

Answer

2190 2190

Exercise #7

3.12×109= 3.12\times109=

Video Solution

Answer

340.08 340.08

Exercise #8

5.11×110= 5.11\times110=

Video Solution

Answer

562.1 562.1

Exercise #9

11.2×101= 11.2\times101=

Video Solution

Answer

1131.2 1131.2