Test your skills: Dividing rational numbers (decimals) questions for 7th grade

📚 Quick Study Guide

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• Dividing Decimals: When dividing decimals, move the decimal point in both the divisor and the dividend to make the divisor a whole number.
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• Rule 1: If dividing by a decimal, multiply both the divisor and dividend by a power of 10 (10, 100, 1000, etc.) to make the divisor a whole number. For example, to solve $3.6 \div 0.2$, we multiply both by 10 to get $36 \div 2$.
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• Rule 2: If dividing two decimals, line up the decimal point in the quotient directly above the decimal point in the dividend after adjusting the decimals as explained above.
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• Rule 3: Add zeros to the right of the dividend's decimal point as needed to continue the division process.
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• Example: To divide 4.25 by 0.5, you would multiply both numbers by 10 to get 42.5 ÷ 5, which equals 8.5.

Practice Quiz

1. What is $1.44 \div 1.2$?
1. 0.12
2. 1.2
3. 12
4. 14.4
2. Solve: $16.9 \div 1.3$
1. 1.3
2. 13
3. 0.13
4. 130
3. Calculate: $0.025 \div 0.5$
1. 0.5
2. 0.05
3. 5
4. 0.005
4. What is $2.25 \div 0.15$?
1. 1.5
2. 15
3. 0.15
4. 22.5
5. Determine the value of: $10.2 \div 0.6$
1. 1.7
2. 17
3. 170
4. 0.17
6. Evaluate: $0.48 \div 0.04$
1. 1.2
2. 12
3. 0.12
4. 4.8
7. Find the result of: $3.33 \div 0.3$
1. 1.11
2. 11.1
3. 111
4. 0.111