Primary 4 Mathematics Tutorial 9.1

A. Write the following as decimals.

1. Four tens seven ones two tenths =

2. Six hundreds two ones and three tenths =

3. Two tens eight tenths four hundredths =

B. Circle the largest number.

1. 3.05 , 3.5 , 3.35

2. 6.92 , 6.29 , 62.9

3. 3.0 , 3.3 , 3.03

C. What does the digit represent.

1. In 9.83, the digit 8 stands for ____________.

2. In 62.67, the digit 7 stands for ____________.

3. In 0.21, the digit 2 stands for ____________.

D. Round off the numbers below.

1. 5.81 is __________ when rounded off to 1 decimal place.

2. 36.16 is __________ when rounded off to the nearest whole number.

3. 23.33 is __________ when rounded off to 1 decimal place.

E. Fill in the missing numbers.

1. 3 + 0.8 = __________

2. 8 + 0.8 + __________ = 8.85

3. 12.5 - __________ = 8.35

4. __________ + 2.62 = 3.6 + 9.22

5. 42 - 10.82 = __________ - 15

6. 30.9 + 21.47 = __________

7. __________ - 5.4 = 18.54

8. 3.01 + 4.82 = 6.02 + __________

F. Express the fractions as decimals.

1. = __________

2. = __________

3. = __________ (to the nearest 1 decimal place)

G. Express as fractions in simplest form.

1. 0.4 = __________

2. 1.35 = __________

3. 2.08 = __________

4. 0.33 = __________

5. 1.5 = __________

H. Challenging problems.

1. Linyu weighs 34.6 kg. Mary is 2.65 kg lighter than Linyu and 5 kg lighter than Mariam. Find Mariam's weight.

2. A plank is 5.82 m long. The carpenter sawed it into 3 pieces of equal length. Find the length of each piece. (Round off to 1 decimal place.)

3. Amy's mother gave her $70. She spent of it on a new Enid Blyton book. How much money had she left? (Round off to the nearest dollar.)


1.	Linyu weighs 34.6 kg. Mary is 2.65 kg lighter than Linyu and 5 kg lighter than Mariam. Find Mariam's weight.
2.	A plank is 5.82 m long. The carpenter sawed it into 3 pieces of equal length. Find the length of each piece. (Round off to 1 decimal place.)
3.	Amy's mother gave her $70. She spent of it on a new Enid Blyton book. How much money had she left? (Round off to the nearest dollar.)



Name:_________________________		Date:_______________