Page 57 - Maths Skill - 3
P. 57
Subtraction 55
MIND MAP
Subtraction
“Subtraction means taking away a number from a given number”
It’s Symbol Recognising Words
It is denoted by ‘–’ sign Subtract
Difference
Deduct
Process and Identity Decrease
Number (1) – Number (2) = Number (3) Left
Remain
Minuend Subtrahend Difference Minus
Take away
Properties Five
1. Number – 0 = Number 9 – 4
2. Number – Number = 0
3. Number (1) – Number (2) 5 8 – 3
≠ Number (2) – Number (1)
4. Number – 1 = Predecessor 5 – 0 7 – 2
6 – 1
Verification
Subtraction Checking Answer Note
4 5 3 2 1 9 0 9
– 2 6 2 3 + 2 6 2 3 In subtraction, the order of numbers is
very important. We always subtract small
1 9 0 9 4 5 3 2 number from big number.