CBSE Class 3 Mathematics Revision Worksheet Set 28

Some important things to remember :-

a) There are 7 days in a week and 12 months in a year .
b ) A year completely divisible by 4 is called a leap year .
c) An ordinary year has 365 days .
d) A leap year has 366 days.
e) The year which is not a leap year is called an Ordinary year .
f) 10 years make a Decade .
g) 100 years make a Century .
h) There are 14 days in a fortnight .
i) There are 7 months in a year which have 31 days each .
j) There are 4 months in a year which have 30 days each .
k) ln Ordinary year February has 28 days .
l) ln leap year February has 29 days .

Q1) Write name of the month and days of the week in maths note book .

Q2) Which months in a year has 30 days each ? Write their names .

Q3) Which months in a year has 31 days each ? Write their names .

Q4) Name the first day of the week . Q5) Name the last day of the week .

Q1) Arrange in Columns and Add :
a) 6780 + 7130 + 45 + 301  b) 1018 + 506 +201 + 2
c) 2108 + 515 +200 + 9       d) 6111+ 446+ 102 + 6
e) 3011+ 146+ 192 + 4        f)  6210 + 202 + 35 +1
g) 7200 + 112 + 88+10        h) 3321 + 2102 + 305

Q1) Complete the following :-
a) ( 1854 + 113 ) + 4589 = ( 4589 + 113 ) + _______.
b) 2014 + ( 8462 + 1540 ) = ______ + ( 2014 + 8462 ) .
c) ( 8715 +_____ ) + 3214 = ( ______ + 1481 ) + 3214 .
d) 3826 +( 2900 +_______) = 3826 +( 7812 + _______ ) .
e) _______ + ( 1100 + 2546 ) = 5269 +(_______ + 1100 )
f) 6489 + _____ = 6489 . g) 9342 + 0 = ________ .
h) _______ + 5114 = 5114 .

Question I. Rewrite the numbers from the biggest to the smallest:
1. 19 , 17 , 14 ,12 -
2. 18 ,10 , 9 , 13 -
3. 14, 13 , 8 , 3 -
Answer:
1. 19, 17, 14, 12
2. 18, 13, 10, 9
3. 14, 13, 8, 3
In simple words: Look for the largest number and write it first. Then write the other numbers from largest to smallest.

Exam Tip: Try to count down backward from 20 to 1 to find the largest number easily.

Question II. Write the position of the objects: 1. The cube is in the __________ position.
2. The star is in the __________ position.
3. The circle is in the __________ position.
Answer:
1. The cube is in the third position.
2. The star is in the second position.
3. The circle is in the first position.
In simple words: We count positions from left to right. The circle is first, the star is second, and the cube is third.

Exam Tip: Always look at the line of objects from left to right to find their order.

Question III. Add the following by drawing sticks :
1. 4 + 4 = ________
2. 5 + 3 = ________
Answer:
1. 4 + 4 = 8 (Sticks: |||| + |||| = ||||||||)
2. 5 + 3 = 8 (Sticks: ||||| + ||| = ||||||||)
In simple words: Draw a line for each number. Then count all the lines together to get the total.

Exam Tip: Double-check your lines by touching each one with your pencil as you count them.

Question IV. Add on the number line :
1. 4 + 5 = _________
2. 3 + 4 = __________
Answer:
1. 4 + 5 = 9 2. 3 + 4 = 7 In simple words: Start on the first number. Then hop to the right by the second number to find the answer.

Exam Tip: Draw one big curve to find your starting number, then small loops for each hop after that.

Question V. Draw the beads on the abacus for the given numbers:
1. 12
2. 16
Answer:
1. Abacus for 12: 2. Abacus for 16: In simple words: Look at the number. The first digit is for Tens (T) and the second is for Ones (O). Draw that many beads.

Exam Tip: Draw the beads stacked up from the bottom base on each rod.