Q1Written answer
Make different patterns by colouring some squares in grids B, C, D. What part of the grid did you colour? What part of the grid remained white? Write.
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Solution:-
NCERT · Class 5 · Maths
Chapter 4: Parts and Wholes
Practice each question, then open the answer or worked solution.
Patterns in parts
Textbook page 57 · 3 questionsQ2Written answer
Look at grid A again. Is the grid coloured
(a) ½ blue, ½ white? (b) 2/4 blue, 2/4 white?
(c) 3/8 blue, 5/8 white? (d) 4/8 blue, 4/8 white?
Mark (X) on the wrong answer.
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Solution:-
(a) ½ blue, ½ white (b) 2/4 blue, 2/4 white
(c) 3/8 blue, 5/8 white (X) (d) 4/8 blue, 4/8 white
Because
(a) ½ blue, ½ white = 8/16 = ½ … [divide both denominator and numerator by 8]
(b) 2/4 blue, 2/4 white = 8/16 = 2/8 … [divide both denominator and numerator by 4]
(d) 4/8 blue, 4/8 white = 8/16 = 4/8 … [divide both denominator and numerator by 2]
Q3Written answer
Draw grids of 16 squares and make patterns with
(a) 2/8 red, ½ yellow, ¼ green
(b) 3/16 blue, 5/16 red, ½ green
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Worked solution
Solution:-
(a) 2/8 red, ½ yellow, ¼ green
Out of 16 squares 2/8 red = 2/8 × 16
= 2 × 2
= 4 red squares
Out of 16 squares ½ yellow = ½ × 16
= 1 × 8
= 8 yellow squares
Out of 16 squares ¼ green = ¼ × 16
= 1 × 4
= 4 green squares
(b) 3/16 blue, 5/16 red, ½ green
Out of 16 squares 3/16 blue = 3/16 × 16
= 3 × 1
= 3 blue squares
Out of 16 squares 5/16 red = 5/16 × 16
= 5 × 1
= 5 red squares
Out of 16 squares ½ green = ½ × 16
= 1 × 8
= 8 green squares
