Tutorial World Primary 1
Name:_________________________ Date:_______________


The Four Operations Of Decimals (10.1)

A. Fill in the blanks.
1. 0.58 + 1.24 = __________ 2. 0.21 3 = __________
3. 1.1 x 5 = __________ 4. 20.45 - 8.52 = __________
5. 50.23 + 4.7 = __________ 6. 0.25 x 16 = __________
7. 1.56 6 = __________ 8. 73.4 - 39.8 = __________
9. 17.4 x 6 = __________ 10. 60.16 4 = __________
11. 10.05 5 = __________ 12. 6.9 x 24 = __________

B. Fill in the blanks.

1. 0.5 m = ____________ cm

2. 1.3 kg = ____________ g

3. 0.74 = ____________ hundredths

4. 25.5 cm = ____________ mm

5. 3.6 = ____________ tenths

6. 4.2 litres = ____________ milli-litres

C. Solve the problems below.
1. Mrs Ng had 8.2 m of cloth. She used 1.25 m to sew 1 dress. If she sewed 6 dresses, how many metres of cloth had she left?
2. If 8 litres of petrol cost $8.64. How much is 1 litre of petrol?
3. Ali bought 2 chickens. One chicken weighed 2.9 kg and the other is 0.4 kg heavier. If the price of the chicken is $0.90 per kg, how much did Ali pay for the 2 chickens?
4. Shulin and Jiamin have $14.20 altogether. If Shulin has of what Jiamin has, how much money does each of them have?
5. Simon had $10. He bought 9 pencils at $0.25 each. He used the rest of his money to buy 5 pens. What is the price of each pen?


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