Question

169 - 144 = 25
196 - 169 = 27
225 - 196 = 29
Example 4. What smallest number should be
make it a perfect square?
Solution.
We know that 12 x 12 = 144 <!
(a)
.:: 148 - 144 = 4 is to be su
(b) 13 x 13 = 169 > 148
.:: 169 - 148 = 21 is to be a
EXERC
I. Find the next square number:
(a) 121
(b) 256
2. Find the square number just before:
(a) 100
(b) 196
3. Find a square number between 75 ar
4. Express the following square number
(a) 81
(b) 144
5. Without actual adding, find the sum:​

Answer 1

Answer:

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