CBSE Class 3 Mathematics Numbers Time Addition Worksheet

Question I. Fill in the blank with correct number:
a) 9268 + 0 = ___________
b) 8146 + 215 = 215 + ___________
c) 268 + 169 + 125 = 125 + ___________ + 268
d) 4000 = ___________ hundreds
e) 2340 + 65 + 100 = 1000 + ________
f) 5800 + 1000 = _________
g) 2600 + 200 = ___________
h) 9900 + 100 = ___________
i) 3900 + 100 = ___________
j) 6995 + ___________ = 6995
Answer:
a) 9268
b) 8146
c) 169
d) 40
e) 1505
f) 6800
g) 2800
h) 10000
i) 4000
j) 0
In simple words: Adding zero does not change a number. Changing the order of numbers in addition keeps the sum the same. Forty hundreds is equal to 4000.

Exam Tip: Remember that adding numbers in any order gives the same result. This helps you fill in order-based blanks quickly without calculating.

Question II. Find the sum of the place value and face value of 4 in 413.
Answer:
1. Find the place value of 4 in 413:
Since 4 is in the hundreds column, its place value is:
\( 4 \times 100 = 400 \)
2. Find the face value of 4:
The face value is just the digit itself, which is 4.
3. Add the two values together:
\( 400 + 4 = 404 \)
The final sum is 404.
In simple words: The place value of 4 is 400, and its face value is 4. Adding them together gives 404.

Exam Tip: Always remember that face value never changes. Place value depends entirely on which position (ones, tens, or hundreds) the digit occupies.

Question III. Write the number names for the following numbers.
a) 1999 ________________________________________
b) 7876 _________________________________________
Answer:
a) One thousand nine hundred ninety-nine
b) Seven thousand eight hundred seventy-six
In simple words: Read each digit from left to right using its column name (thousands, hundreds, tens, and ones) to write the spelling.

Exam Tip: Pay close attention to the spelling of numbers like "ninety" (not ninety without 'e') and "forty" (not fourty).

Question IV. Write the numbers for the given number names.
a. Nine thousand Six hundred thirty-two _________
b. Four thousand Nine hundred_______ _________
Answer:
a. 9632
b. 4900
In simple words: Place the digits in their correct columns (thousands, hundreds, tens, and ones) to write the number.

Exam Tip: Use placeholder zeros (like in 4900) if a place value (such as tens or ones) is not mentioned in the name.

Question V. Count forwards in 6s and fill in the blanks.
a) 2641, 2647, ______, ______, ______, ______, ______, ______
Answer:
Add 6 to the previous number to find each next number:
\( 2647 + 6 = 2653 \)
\( 2653 + 6 = 2659 \)
\( 2659 + 6 = 2665 \)
\( 2665 + 6 = 2671 \)
\( 2671 + 6 = 2677 \)
\( 2677 + 6 = 2683 \)
The completed sequence is: 2641, 2647, 2653, 2659, 2665, 2671, 2677, 2683
In simple words: Add 6 to each number to get the next number in the pattern.

Exam Tip: Double check your addition at each step. If you make one mistake early on, all the next numbers will be incorrect.

Question VI. a) Count forwards in 9s and fill in the blanks.
1925, 1934, ______, ______, ______, ______, ______, ______

b)Count backwards in 6s and fill in the blanks.
1660, 1654, _____, ______, ______, ______, ______, ______
Answer:
a) Add 9 to the previous number to count forwards:
\( 1934 + 9 = 1943 \)
\( 1943 + 9 = 1952 \)
\( 1952 + 9 = 1961 \)
\( 1961 + 9 = 1970 \)
\( 1970 + 9 = 1979 \)
\( 1979 + 9 = 1988 \)
The completed sequence is: 1925, 1934, 1943, 1952, 1961, 1970, 1979, 1988

b) Subtract 6 from the previous number to count backwards:
\( 1654 - 6 = 1648 \)
\( 1648 - 6 = 1642 \)
\( 1642 - 6 = 1636 \)
\( 1636 - 6 = 1630 \)
\( 1630 - 6 = 1624 \)
\( 1624 - 6 = 1618 \)
The completed sequence is: 1660, 1654, 1648, 1642, 1636, 1630, 1624, 1618
In simple words: For part (a), add 9 to find the next numbers. For part (b), subtract 6 to find the next numbers.

Exam Tip: Be sure to read the instructions carefully to know whether you need to count forwards (add) or count backwards (subtract).

Question VII. Count backwards in 10s and fill in the blanks.
3865, 3855, ______, ______, ______, ______, ______, ______
Answer:
Subtract 10 from the previous number to count backwards:
\( 3855 - 10 = 3845 \)
\( 3845 - 10 = 3835 \)
\( 3835 - 10 = 3825 \)
\( 3825 - 10 = 3815 \)
\( 3815 - 10 = 3805 \)
\( 3805 - 10 = 3795 \)
The completed sequence is: 3865, 3855, 3845, 3835, 3825, 3815, 3805, 3795
In simple words: Keep subtracting 10 from each number to find the next ones in the pattern.

Exam Tip: When subtracting tens, only the digit in the tens place changes, while the ones place digit stays exactly the same.

Question VIII. In a school, 355 children like cricket while 280 like football. The total number of students who like cricket and football is _______________.
Answer:
To find the total number of students, add the number of students who like cricket to the number of students who like football:
\( 355 + 280 = 635 \)
The total number of students is 635.
In simple words: Add 355 and 280 together to get the total number of children, which is 635.

Exam Tip: Write down your column addition carefully and align the ones, tens, and hundreds places before adding.

Question IX. Write the time in two ways:
Clock 1:

Clock 2:

Clock 3:

Clock 4:

Answer:
Clock 1: 7:20 & Twenty minutes past 7
Clock 2: 5:45 & Quarter to 6
Clock 3: 4:45 & Quarter to 5
Clock 4: 6:15 & Quarter past 6
In simple words: Look at the short hand for the hour and the long hand for the minutes. Write the time in digits, and then write it in words.

Exam Tip: Remember that "quarter past" means 15 minutes have passed, "quarter to" means there are 15 minutes left until the next hour, and "half past" means 30 minutes have passed.