CBSE Class 3 Mathematics Revision Worksheet Set 22

Question A. Colour half of each shape :

Answer:
To shade half of a shape, we colour 1 part out of 2. If there are 4 parts, we colour 2 of them. If there are 8 parts, we colour 4.
1. Circle (shaded 1 of 2 parts):

2. Square (shaded 2 of 4 parts):

3. Diamond (shaded 1 of 2 parts):

4. Flower (shaded 2 of 4 parts):

5. Rectangle (shaded 4 of 8 parts):

In simple words: To colour half of a shape, just count the parts and shade exactly half of them.

Exam Tip: When shading half of a shape, first count the total parts. Then, divide that number by 2 and shade that many parts.

Question B. What fraction is shaded :
(a)

(b)

(c)

(d)

(e)

(f)

Answer:
(a) \( \frac{1}{8} \)
(b) \( \frac{1}{2} \)
(c) \( \frac{2}{4} \) (which simplifies to \( \frac{1}{2} \))
(d) \( \frac{2}{4} \) (which simplifies to \( \frac{1}{2} \))
(e) \( \frac{4}{8} \) (which simplifies to \( \frac{1}{2} \))
(f) \( \frac{1}{3} \)
In simple words: Count the shaded parts to write the top number. Count all the parts together to write the bottom number.

Exam Tip: Remember that the top number of a fraction shows the shaded parts, and the bottom number shows the total parts.

Question C. Write the fraction if :
(a) Numerator is 6 & Denominator is 10 =
(b) Numerator is 9 & Denominator is 15 =
(c) Numerator is 5 & Denominator is 7 =
(d) Numerator is 3 & Denominator is 4 =
Answer:
(a) \( \frac{6}{10} \) (which simplifies to \( \frac{3}{5} \))
(b) \( \frac{9}{15} \) (which simplifies to \( \frac{3}{5} \))
(c) \( \frac{5}{7} \)
(d) \( \frac{3}{4} \)
In simple words: The numerator is the number on top of the line. The denominator is the number on the bottom of the line.

Exam Tip: Never mix up the numerator and denominator. The numerator always sits on top, and the denominator always goes below the line.