Page 58 - Start Up Mathematics_1
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2. 6 – 5 = ?
0 1 2 3 4 5 6 7 8 9
Starting from 6, we count Remember
back 5. We get the answer 1. When we subtract from a given number,
So, 6 – 5 = 1. a number just before it, the answer is
always 1.
7 Subtract the numbers on the number line.
(a) 8 – 4 =
0 1 2 3 4 5 6 7 8 9
(b) 7 – 5 =
0 1 2 3 4 5 6 7 8 9
(c) 9 – 2 =
0 1 2 3 4 5 6 7 8 9
(d) 5 – 1 =
0 1 2 3 4 5 6 7 8 9
Little Genius!
Subtract on the number line.
7 – 2 – 3 =
0 1 2 3 4 5 6 7 8 9
Hint: Start from the first number and move backward to subtract the second
number. Then starting from the answer, count backward the third number.
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