Dividing whole number by a decimal

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Presentation transcript:

Dividing whole number by a decimal

EXAMPLE 1 Find 54 ÷ .12 Before we divide, we need to convert the divisor into a whole number. In the divisor there are two digits after the decimal point. So we have to multiply both dividend and divisor by 100

EXAMPLE 1 Divide as usual. ) 5400 12 48 60 - 60 - 0 4 5 0 Ans : 15.6 ÷ .12 = 450

EXAMPLE 2 Find 25 ÷ 0.5 Before we divide, we need to convert the divisor into a whole number. In the divisor there is one digit after the decimal point. So we have to multiply both dividend and divisor by 10

EXAMPLE 2 Divide as usual. ) 250 5 5 0 -25 - 0 Ans : 25 ÷ 0.5 = 50

Example :Converting divisor into a whole number. In the divisor there is 1 digit after the decimal point. So we have to multiply both dividend and divisor by 10 6÷1.5 In the divisor there is 2 digits after the decimal point. So we have to multiply both dividend and divisor by 100 5÷.25 In the divisor there is 1 digit after the decimal point. So we have to multiply both dividend and divisor by 10 525 ÷2.5

Try these 22 ÷ 0.5 5 ÷ 0.02 27 ÷ 0.6