To learn basic rules about subtraction

Subtraction is basically an action of removing. It is the opposite of addition.

Subtraction

Start with 3

Subtraction

and endwith 2.

SubtractionWhat

happened to 1?

Subtraction

Subtraction

I see. If I understandthis …

Subtraction

If you startwith 4

Subtraction and end

with 3

SubtractionYou’ll need

to take away 1.

Subtraction

Subtraction

But wheredoes the1 go?

Subtraction

Doesanyoneknow?

ZEROS IN SUBTRACTIONZero is called the amazing number. Reason of this ‘amazing’ is that no matter whether the number zero is multiplied, added or subtracted from zero the answer is still zero. And whenever zero is subtracted from any other number the answer is still the number.

7 – o = 7 12 – 0 = 12

142 – 0 = 142So, when you subtract Zero from a number the difference is that number.

7 – 7 = 023 – 23 = 0

145 – 145 = 0When you subtract a number from itself, the difference is Zero.

SUBTRACTION FACTS It is important you take into account

the following concepts:

4597 Minuend

- 1829 Subtrahend

2698 Difference

SUBTRACTION FACTS Follow the next steps to solve a subtraction

by regrouping:

1.Subtract the ones 4597 -18292. Subtract the tens 4597

-1829

3. Subtract the hundreds 4597

- 1829

4. Subtract the thousands 4597

- 1829

LET’S PRACTICE1. 3,905 5. 6,070 9. 9,308 - 2,659 - 2,985 - 4,675 1, 2462. 8,063 6. $ 37.08 10. 8,001 - 2,785 - 29.89 - 3,975

3. 6,247 7. 7,006 - 3968 - 2,589

4. 5,710 8. $ 40.37 - 2,396 - 9.56