CBSE Class 4 Maths Halves And Quarters Worksheet Set 04

Ques.1 Colour the \(\frac{1}{4}\) of following picture.
Answer: Count the total number of items in the picture group and colour one-fourth ( \(\frac{1}{4}\) ) of them. For example, if there are 8 items, colour 4 items.
In simple words: Colour one out of every four parts of the picture.
Exam Tip: Divide the total number of objects by 4 to find out how many objects need to be coloured.

Ques.2 Draw a line to show \(\frac{1}{2}\).
Answer: Draw a straight line passing through the exact center of the given figure to divide it into two identical halves.
In simple words: Cut the shape into two equal halves by drawing a line through the middle.

Exam Tip: Ensure that both divided sections overlap perfectly when folded along the drawn line.

Ques.3 Which of the following figure shows four equal parts.
Answer: Figure C
In simple words: Figure C is divided into four equal parts.

Exam Tip: Check whether all four sections have the exact same shape and area.

Ques.4 Match the following figures:
(A) \(\frac{3}{4}\) - A
(B) \(\frac{1}{4}\) - C
(C) \(\frac{1}{2}\) - D
(D) \(\frac{4}{4}\) - B
Answer:
(A) matches with C
(B) matches with A
(C) matches with D
(D) matches with B
In simple words: Match each fraction to the figure that shows the same shaded portion.

Exam Tip: Count the shaded parts as the numerator and the total equal parts as the denominator.

Ques.5 Shade the \(\frac{1}{4}\) of the given figure.
Answer: Shade any 1 of the 4 equal parts or shapes given in the box.
In simple words: Shade one out of the four shapes.

Exam Tip: Out of 4 identical items, shading any 1 item represents \(\frac{1}{4}\).

Ques.6 \(250\text{ g} + 250\text{ g} + 150\text{ g} + \underline{\quad\quad\quad} = 1000\text{ g}\)
Answer:
Sum of given weights = \(250\text{ g} + 250\text{ g} + 150\text{ g} = 650\text{ g}\)
Missing weight = \(1000\text{ g} - 650\text{ g} = 350\text{ g}\)
In simple words: Add the given weights and subtract from 1000 g to find the remaining weight, which is 350 g.

Ques.7 The collection is divided into 4 equal parts. Encircled portion represents.
A) \(\frac{1}{3}\)
B) \(\frac{3}{4}\)
C) \(\frac{1}{2}\)
Answer: \(\frac{1}{4}\) (Option A format represents one-fourth part)
In simple words: One part out of four equal parts is represented as \(\frac{1}{4}\).

Exam Tip: The denominator shows total parts and the numerator shows the selected parts.

Ques.8 Fill in the blanks:-
a) \(1\text{ kg} = \underline{1000}\text{ g}\).
b) \(1\text{ m} = \underline{100}\text{ cm}\).
c) \(1\text{ liter} = \underline{1000}\text{ ml}\).
Answer:
a) 1000
b) 100
c) 1000
In simple words: Standard metric conversions are 1 kg = 1000 g, 1 m = 100 cm, and 1 liter = 1000 ml.

Exam Tip: Memorize basic unit conversion factors to solve measurement blanks quickly.

Ques.9 There are 20 blocks. \(\frac{3}{4}\) are green. How many are not green?
Answer:
Total blocks = 20
Number of green blocks = \(\frac{3}{4} \text{ of } 20 = \frac{3}{4} \times 20 = 3 \times 5 = 15\)
Number of blocks not green = Total blocks - Green blocks = \(20 - 15 = 5\) (which is \(\frac{1}{4}\) of 20)
In simple words: Find three-fourths of 20 to get the green blocks, then subtract from 20 to find the rest.

Exam Tip: If \(\frac{3}{4}\) are green, then \(1 - \frac{3}{4} = \frac{1}{4}\) blocks are not green. \(\frac{1}{4} \text{ of } 20 = 5\).

Ques.10 Three fourth of the match was over when I switched on TV. What part of the match is left?
Answer:
Total match = 1 whole
Part of match over = \(\frac{3}{4}\)
Part of match left = \(1 - \frac{3}{4} = \frac{4}{4} - \frac{3}{4} = \frac{1}{4}\)
In simple words: Subtract the finished part from the whole match to get the remaining part, which is one-fourth (\(\frac{1}{4}\)).

Exam Tip: A whole is always represented as a fraction where the numerator and denominator are equal, like \(\frac{4}{4}\).

Ques.11 From 12 boys in a school, \(\frac{1}{2}\) went for swimming. How many children are left in the class?
Answer:
Total boys = 12
Boys who went for swimming = \(\frac{1}{2} \text{ of } 12 = \frac{12}{2} = 6\)
Children left in the class = Total boys - Boys who went for swimming = \(12 - 6 = 6\) boys
In simple words: Half of 12 boys went swimming, so 6 boys remain in the class.

Exam Tip: Finding \(\frac{1}{2}\) of a number is the same as dividing that number by 2.

Ques.12 Complete the diagram...
Answer: Draw the mirror image or the remaining symmetrical half of the given figure to complete the whole shape.
In simple words: Finish drawing the other matching side of the picture.

Exam Tip: Use a ruler and measure distances carefully to maintain symmetry.

Ques.13 One can hold 500 ml of water. How many cans can be required to hold 2 liter of water.
Answer:
Capacity of 1 can = \(500\text{ ml}\)
Total water to hold = \(2\text{ liters} = 2 \times 1000\text{ ml} = 2000\text{ ml}\)
Number of cans required = \(\frac{2000\text{ ml}}{500\text{ ml}} = 4 \text{ cans}\)
In simple words: Since 4 cans of 500 ml make 2000 ml (2 liters), 4 cans are required.
Exam Tip: Always convert liters to milliliters before dividing by ml capacity.

Ques.14 Balance the weight with the help of following.
Answer:
To balance a given weight, use the combination of standard weights like \(2\text{ kg} + 1\text{ kg}\) (or other combinations depending on the target weight).
In simple words: Choose the correct weights that add up to the required balance weight.

Exam Tip: Total weight on the left pan must equal the total weight on the right pan.

Ques.15 Complete the following:-
a) \(250\text{ ml} + 250\text{ ml} + \underline{\quad\quad\quad} = 1\text{ liter}\).
b) \(500\text{ ml} + \underline{\quad\quad\quad} + \underline{\quad\quad\quad} = 1\text{ liter}\).
c) \(250\text{ ml} + 250\text{ ml} + \underline{\quad\quad\quad} + 250\text{ ml} = 1\text{ liter}\).
Answer:
a) \(500\text{ ml}\) (since \(250 + 250 + 500 = 1000\text{ ml}\))
b) \(250\text{ ml}, 250\text{ ml}\) (since \(500 + 250 + 250 = 1000\text{ ml}\))
c) \(250\text{ ml}\) (since \(250 + 250 + 250 + 250 = 1000\text{ ml}\))
In simple words: Fill in the missing milliliters so that the total sum equals 1000 ml (1 liter).

Exam Tip: Remember that \(1\text{ liter} = 1000\text{ ml}\) in all volume additions.

CBSE Class 4 Maths Chapter 9 Revision Worksheet-Halfs and Quarters