Worked example
Find 1.2 × 0.3.
Answer & why
Answer: 0.36
1.2 is 12 tenths and 0.3 is 3 tenths. Their product is 36 hundredths, or 0.36.
Grade 5 · Math
Multiply decimal tenths
Use place value to multiply two positive numbers written in tenths.
6 authored questions + worked example
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All questions
All 6 authored questions for this skill.
Question 1
Find 1.5 × 0.6.
- 90
- 0.090
- 0.90
- 9.0
A hint
A tenth times a tenth is a hundredth; use an estimate to check the decimal point.
Answer & why
Answer: 0.90
1.5 is 15 tenths and 0.6 is 6 tenths. Their product is 90 hundredths, or 0.90.
Question 2
Find 3.2 × 0.5.
- 160
- 1.60
- 0.160
- 16.0
A hint
A tenth times a tenth is a hundredth; use an estimate to check the decimal point.
Answer & why
Answer: 1.60
3.2 is 32 tenths and 0.5 is 5 tenths. Their product is 160 hundredths, or 1.60.
Question 3
Find 1.8 × 0.7.
- 1.26
- 0.126
- 12.6
- 126
A hint
A tenth times a tenth is a hundredth; use an estimate to check the decimal point.
Answer & why
Answer: 1.26
1.8 is 18 tenths and 0.7 is 7 tenths. Their product is 126 hundredths, or 1.26.
Question 4
Find 2.6 × 0.8.
- 0.208
- 20.8
- 2.08
- 208
A hint
A tenth times a tenth is a hundredth; use an estimate to check the decimal point.
Answer & why
Answer: 2.08
2.6 is 26 tenths and 0.8 is 8 tenths. Their product is 208 hundredths, or 2.08.
Question 5
Find 1.2 × 0.3.
- 3.6
- 0.036
- 0.36
- 36
A hint
A tenth times a tenth is a hundredth; use an estimate to check the decimal point.
Answer & why
Answer: 0.36
1.2 is 12 tenths and 0.3 is 3 tenths. Their product is 36 hundredths, or 0.36.
Question 6
Find 2.4 × 0.4.
- 96
- 0.096
- 0.96
- 9.6
A hint
A tenth times a tenth is a hundredth; use an estimate to check the decimal point.
Answer & why
Answer: 0.96
2.4 is 24 tenths and 0.4 is 4 tenths. Their product is 96 hundredths, or 0.96.