CBSE Class 3 Mathematics Numbers Subtraction Patterns Worksheet

TOPICS: NUMBERS, SUBTRACTION, PATTERNS

I ) Fill in the blank with correct number:

a) 132 - 0 = ___________

b) 489 - 489 = ___________

c) 125 - 0 =___________

d) 497 - _______ = 497

e) 843 - _______ = 0

f) 70 hundreds = 70 _________

II) Tick the correct answer from given choices:

a) The number shown on the abacus is:

(i) 2,513 (iii) 3,512

(ii) 3,125 (iv) 3,225

b) Jiya wrote a number 374 in four ways. Which way is not correct?

(i) 300+70+4 (iii) 100+100+100+70+4

(ii) Three hundred seventy four (iv) 3 hundreds 70 tens 4 ones

c) Which number has a 5 in hundreds place?

(i) 354 (iii) 875

(ii) 598 (iv) 905

d) At the beginning of a journey, the hodometer of a car read 5,602

kilometres. At the end of the journey it read as 7,453 kilometres.

How much distance did the car travel?

(i) 1841 km (iii) 1801 km

(ii) (ii) 1861 km (iv) 1851 km

Question I ) Fill in the blank with correct number:
a) 132 - 0 = ___________
b) 489 - 489 = ___________
c) 125 - 0 =___________
d) 497 - _______ = 497
e) 843 - _______ = 0
f) 70 hundreds = 70 _________
Answer:
a) 132
b) 0
c) 125
d) 0
e) 843
f) hundreds (since 70 hundreds equals 70 hundreds, which is also equal to 7 thousands or 700 tens)
In simple words: Subtracting zero does not change a number. Subtracting a number from itself always leaves zero. For place values, 70 hundreds is simply 70 hundreds.

Exam Tip: Remember the basic rules of zero in subtraction: any number minus zero is the same number, and any number minus itself is zero.

Question II) Tick the correct answer from given choices:
a) The number shown on the abacus is:
(i) 2,513                        (iii) 3,512
(ii) 3,125                        (iv) 3,225

b) Jiya wrote a number 374 in four ways. Which way is not correct?
(i) 300+70+4                    (iii) 100+100+100+70+4
(ii)Three hundred seventy four      (iv) 3 hundreds 70 tens 4 ones

c) Which number has a 5 in hundreds place?
(i) 354                          (iii) 875
(ii)598                          (iv) 905

d) At the beginning of a journey, the hodometer of a car read 5,602 kilometres. At the end of the journey it read as 7,453 kilometres. How much distance did the car travel?
(i) 1841 km                      (iii) 1801 km
(ii)(ii) 1861 km                  (iv) 1851 km
Answer:
a) (iii) 3,512
b) (iv) 3 hundreds 70 tens 4 ones
c) (ii) 598
d) (iv) 1851 km
In simple words: Count the beads on the abacus to find the number 3512. For 374, seventy tens is too big. 598 has five in the hundreds place. Subtract 5602 from 7453 to find the distance.

Exam Tip: Be careful with place value terms like "70 tens" - always multiply to check the real value before deciding if an option is correct.

Question III) Discover the pattern, write the rule and continue the pattern:
a) 24, 22, 20, 18, _____, ______, ________, ______.
Rule: ________________________________________________

b) ABC, CBA, DEF, FED,______, ______,______,______,
Rule:________________________________________________

c) 11 A, 13 B, 15 C,______, ______, ______,_____
Rule:________________________________________________

d)
,________
Rule:________________________________________________

e)
,____________, _____________
Rule:________________________________________________
Answer:
a) 16, 14, 12, 10
Rule: Subtract 2 from the last number.

b) GHI, IHG, JKL, LKJ
Rule: Write three letters in order, then write them backward.

c) 17 D, 19 E, 21 F, 23 G
Rule: Add 2 to the number and write the next alphabet letter.

d) Triangle (next shape is a triangle)
Rule: Repeat the shapes in order: oval, triangle, and rounded rectangle.

e) 1 arrow, 2 parallel arrows
Rule: Repeat the pattern of a line, one arrow, and two arrows.
In simple words: Look closely at how the numbers or shapes change. Find the repeating pattern to write what comes next.

Exam Tip: For mixed patterns with numbers and letters, look at the numbers and letters separately first to find the rules more easily.

Question IV) Subtract and check the answer:
a) 10 hundreds-10 tens
Answer:
1. Write as normal numbers:
10 hundreds = 1000
10 tens = 100
2. Do the subtraction:
1000 - 100 = 900
3. Check the work:
900 + 100 = 1000
In simple words: 10 hundreds is 1000 and 10 tens is 100. Subtract 100 from 1000 to get 900. Add them back to check your work.

Exam Tip: Checking subtraction is easy: just add your answer to the smaller number. If you get the larger number, your math is correct!

Question V) In the number 7385, subtract the face value of 8 from its place value.
Answer:
1. Find the place value of 8 in 7385:
8 is in the tens place, so its value is 80.
2. Find the face value of 8:
The face value of 8 is just 8.
3. Subtract:
80 - 8 = 72
In simple words: The place value of 8 in 7385 is 80. Its face value is just 8. Subtract 8 from 80 to get 72.

Exam Tip: Never confuse place value with face value. Face value is always just the digit itself, while place value depends on its column (ones, tens, hundreds, etc.).