Page 21 - E book 5

Delta Modern Language Schools

Primary stage Grade 5

Math department

1st term 2024/2025

Dividing decimal

• Concept 2

First : dividing by power of ten

To divide by 10 move the decimal point 1 place to the left

24.56 ÷ 10 = 2.456

To divide by 100 move the decimal point 2 place to the left

24.56 ÷ 100 =0.2456

To divide by 1000 move the decimal point 3 place to the
left 24.56 ÷ 1000 = 0.02456

Second : dividing and multiplying by the powers of ten

Dividing a number by 0.1 is equivalent to multiplying it by
10

235.87÷ 0.1= 2358.7 235.87 x 10 = 2358.7

Dividing a number by 0.01is equivalent to multiplying it by
100

235.87÷ 0.01= 23587 235.87 x 100 = 23587

Dividing a number by 0.001is equivalent to multiplying it
by 1000

235.87÷ 0.001= 235870 235.87 x 1000 = 235870

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