Grade 5 · Math · Unit 7 of 13
Decimals
Tenths, hundredths and thousandths
What your child practises
Reading, writing, comparing and rounding decimals to thousandths, linking decimals to fractions out of 10, 100 and 1000, and adding and subtracting decimals in real situations.
New Brunswick Curriculum skill descriptor: Number: Number Sense · decimals to thousandths, relating them to fractions, and comparing and ordering them
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Put these decimals in order from least to greatest.
- 0.6
- 0.607
- 0.76
- 0.67
0.6 → 0.607 → 0.67 → 0.76
Hint: Compare place by place: tenths first, then hundredths, then thousandths. Writing zeros on the end (0.5 = 0.500) can help.
Question 2
Maya's recipe uses 9.36 kg of flour and 1.1 kg of sugar. What is the total mass?
9.36 + 1.1 = ?
answer boxkg
10.46 kg
Hint: Line up the decimal points. Write zeros so both numbers have the same number of decimal places, then add as with whole numbers.
Question 3
Round 7.981 to the nearest tenth.
- 8.0
- 8
- 7.98
- 7.9
8.0
Hint: Look at the digit just to the right of the tenths place. If it is 5 or more, round up; if it is less than 5, round down.
Question 4
Jay's pumpkin has a mass of 6.5 kg. A friend's pumpkin is 2.42 kg. How much heavier is Jay's pumpkin?
6.5 − 2.42 = ?
answer boxkg
4.08 kg
Hint: Line up the decimal points and write zeros in any empty places (for example, 2 = 2.000). Then subtract, regrouping as needed.
Question 5
Write 771/1000 as a decimal.
771/1000 = ?
answer box
0.771
Hint: The denominator tells you the last place: 10 → tenths, 100 → hundredths, 1000 → thousandths. Use zeros to fill any empty places.
Question 6
Write this as a decimal: fourteen and seven hundred eight thousandths.
answer box
14.708
Hint: The word “and” marks the decimal point. The last word tells you the last place: tenths = 1 digit after the point, hundredths = 2, thousandths = 3. Use zeros to hold empty places.