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(iii) 7 hundreds – 5 hundreds = 2 hundreds
7 thousands – 3 thousands = 4 thousands
Thus 7854 – 3586 = 4268
SUBTRACTION OF FOUR-DIGIT NUMBERS (BORROWING THOUSANDS)
Example: Subtract 3834 from 4746.
Th H T O
Solution: (i) 6 ones – 4 ones = 2 onses
(ii) 4 tens – 3 tens = 1 tens 4 7 4 6
(iii) We cannot subtract 8 hundreds – 3 8 3 4
from 7 hundreds 9 1 2
Borrow 1 thousand leaving 3 thousands
1 thousand + 7 hundreds = 17 hundreds
17 hundreds – 8 hundreds = 9 hundreds
(iv) 3 thousands – 3 thousands = 0 thousands
MENTAL MATHS-2
A. Subtract the number.
(a) Th H T O (b) Th H T O (c) Th H T O
6 8 6 5 6 8 6 4 7 4 5 2
– 5 2 8 9 – 2 2 7 6 – 3 4 7 5
(d) Th H T O (e) Th H T O (f) Th H T O
9 8 6 2 7 4 2 1 7 5 8 0
– 7 5 8 5 – 5 2 5 2 – 5 4 8 5
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Subtraction
Mathematics-3
