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Lesson Example Discussion Quiz: Class Homework

Example

Title: Division of Decimals

Grade: 8-a Lesson: S2-L6

Explanation: Hello Students, time to learn examples. Let us take turns and read each example. Explain each step. Pay special attention to steps and pictures and communicate in your own words.

Examples:

Divide \$(13.24) \div (1.2)\$.

Step 1a

Convert the divisor into a whole number.

In this example, we convert 1.2 into 12 by moving the decimal point one position to the right.

$1a$

Explanation: First, we are converting the divisor into a whole number. i.e.,\$(1.2) \times (10)\$ = 12

Step 1b

Move the decimal point in the dividend to the same number of places as in the divisor. Moving the decimal point one position to the right in 13.24 gives 132.4.

$1b$

Explanation: Then, multiply the dividend by the same number of tens using the divisor, i.e., \$(13.24) \times (10) = 132.4\$

Step 1c

Now divide the decimal number 132.4 by the whole number 12.

$1c$

Explanation: Divide normally while ignoring the decimal until you get zero as the remainder.We will ignore the decimals and divide them as \$132.4 \div (12)\$.

Step 1d

Therefore \$(132.4) \div (12) = 11.033\$.

$1d$

Explanation: So,\$(13.24) \div (1.2)\$ has become \$(132.4) \div (12) = 11.033\$.