DECIMALS

UNIT 3 Decimals

Objective Questions

1          70.03 + 24 – 36.892 + 4.6 =

            A         61.742                         C         37.982

            B         61.738                         D         37.978

2.         8 – 3.46 + 2.957 =

            A         7.497                           C         8.417

            B         7.597                           D         8.517

3.         2 320.24 ÷ 8 =

            A         29.003                         C         290.3

            B         29.03                           D         290.03

4.         14.06 + 5.4 =            × 10

            What is the missing number?

            A         1 946                           C         19.46

            B         194.6                           D         1.946

	5.36

5.

            The diagram shows a number card. Find the product of the values of digit 5 and

            digit 6.

            A         0.3                               C         30

            B         3                                  D         300

6.         Convert 0.08 to a fraction.

             A                                        C        

            B                                         D        

           

0.082

0.81

0.79

0.8

7.         The diagram shows four number cards.                                                                                                         

           

The four numbers arranged in ascending order are

            A         0.79, 08, 0.81, 0.082

            B         0.082, 0.79, 0.8, 0.81

            C         0.81, 0.082, 0.8, 0.79

            D         0.8, 0.79, 0.81, 0.082

8.         The diagram shows an incomplete number line.

                      6.9           7.5            Y              Z             9.3

            Calculate the values of Y and Z. Hence, the sum of the five numbers is

            A         16.8                             C         40.2

            B         17.2                             D         40.5

9.         What must be subtracted from 110 to get 30.48?

            A         69.52                           C         79.52

            B         70.48                           D         140.48

10.       2.125 × 80 =

            A         0.017                           C         17

            B         0.17                             D         170

11.       9 –  –  =

            A         8.689                          

            B         8.789              

C         8.989  

D         8.999

12.       The diagram shows a number card.

	0.87

             

             Add 1 to the number on the card. What is the total?

            A         1.85                             C         2.48

            B         1.94                             D         2.57

13.       (20 – 7.24) + (35.1 – 10.605) =

            A         37.255

            B         38.355

            C         38.385

            D         39.365

14.       0.123 × 10 =            ¸ 100

            What is the missing number?

            A         1 230

            B         123

            C         12.3

            D         1.23

	9.18		2.74

15.                  

Find the difference between the values of digit 1 and digit 4 in the two numbers

above.

            A         0.03                             C         0.60

            B         0.06                             D         0.96

Subjective Questions

             

1.         Convert 7 to a decimal.

2.         Find the total of 83.9 and 8.41.

3.         49.8 – (5.2 + 16.47) =

4.         0.856 ¸ 8 =

5.         Rearrange 0.9, 0.099, 0.901, 0.91 in descending order.

6.        

                             4.21                     5.81       6.61                       P

What is the value of P on the number line above?

             

           

7.         Find the difference between 46.02 and 27.9.

8.         0.4 × 1 000 =

             

           

9.         State the place value of digit 7 in the decimal 6.712.

10.       137.2 ¸ 20 =

            Round off the answer to the nearest tenth.

11.       6.125 × 80 =

12.       What must be subtracted from 20.16 to get 9.208?

             

13.       (43.7 + 8.14) – (9.25 + 16.9) =

           

14.       Convert 0.28 to a fraction. Give the answer in the simplest form.

15.       The total of three numbers is 105.6. Given two of the numbers are 43.6 and 20.88. What is the other number?