Subtracting tenths.

1
Subtracting tenths.
I am learning to subtract with 1 decimal place
fractions.
Questions like 3.7 - 2 .9 ?
2
Anita had 2.6 of a chocolate bar left after her
party. She then ate another 0.9 How much does she
have left?
2.6 0.9
Step 1 Imagine the 2.6
Step 2 We cant take 0.9 away because we only
have 0.6 To fix this we will have to remove one
of the whole chocolate bars from its wrapper so
we can subtract 9.
chocolate
chocolate
Step 4 Now we can remove the 9 tenths.
2.6 0.9 1.7
3
Andre had 3.2 of a chocolate bar left after
Christmas. He then ate another 1.6 How much does
he have left?
3.2 1.6
Step 1 Imagine the 3.2
Step 2 We can subtract the whole so lets do
this now.
chocolate
chocolate
chocolate
Step 3 We cant take 0.6 away because we only
have 0.2 To fix this we will have to remove one
of the whole chocolate bars from its wrapper so
we can subtract 0.6
Step 4 Now we can remove the 6 tenths.
3.2 1.6 1.6
4
Now try these questions on your own. You may need
some blocks to help you work these out.
Click again when you have completed each question
and the answer will be displayed.

1. 4.3 2.8 ?
2. 2.5 1.9 ?
3. 3.7 0.8 ?
4. 2.2 1.5 ?
5. 7.3 - 4.5 ?

1.5
0.6
2.9
0.7
2.8
Need some more practise? Try Teacher Tools
Addition and Subtraction Book or Fractions,
Decimals and Percentages Book Numeracy resources