Page 115 - New Medley 3 Semester 1

4. Th H T O 5. Th H T O 6. Th H T O
7 4 3 6 5 7 0 4 2 0 3 6

+ 2 5 4 0 + 4 1 1 1 + 3 7 4 2

7. Th H T O 8. Th H T O 9. Th H T O

4 0 2 5 4 0 6 3 2 2 5 1

+ 2 3 6 4 + 4 1 2 2 + 7 3 4 0

Th H T O Th H T O Th H T O
10. 11. 12.
1 3 5 0 2 6 4 1 4 1 4 2

+ 6 5 2 4 + 3 0 4 6 + 2 2 4 3

+ 2 1 1 3 + 4 0 1 0 + 2 5 0 3

ADDITION OF 4 DIGIT NUMBERS (WITH CARRYING)

Now let us recall carrying in addition.

7 ones + 5 ones = 12 ones = 10 ones and 2 ones

= 1 ten and 2 ones

8 tens + 6 tens = 14 tens = 10 tens and 4 tens

= 1 hundred and 4 tens

7 hundreds + 6 hundreds = 13 hundreds

= 10 hundreds and 3 hundreds

= 1 thousand and 3 hundreds

We need to carry in addition when the sum in any column (place) is
greater than 9.

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