Subtraction of Tens
We will learn subtraction of tens.
When we subtract 10 from a number, we take away only group of tens and there is no change in the digit in ones place.
Let us subtract 10 from 20.
Let us subtract 20 from 27.
1. Complete the following subtraction:
2. Find the difference of the following. One has been
|
(i) |
T O 7 0 - 1 0 6 0 |
(ii) |
T O 5 5 - 3 0
|
|
(iii) |
T O 8 3 - 4 0
|
(iv) |
T O 6 7 - 4 0
|
|
(v) |
T O 8 9 - 6 0
|
(vi) |
T O 6 3 - 1 0
|
|
(vii) |
T O 5 0 - 2 0
|
(viii) |
T O 7 0 - 6 0
|
|
(ix) |
T O 6 5 - 4 0
|
(x) |
T O 9 9 - 7 0
|
3. Find the difference of the following. One has been done for you.
30 – 10 = 20
60 – 20 = _____
70 – 30 = _____
61 – 10 = _____
88 – 20 = _____
50 – 30 = _____
60 – 50 = _____
30 – 10 = _____
93 – 60 = _____
56 – 30 = _____
First Grade Math Activities
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