Question

Exercise 21
1 Solve. Use the simpler number strategy if you need to.
a Find the number that is 8,392 less than 15,896. 75015
b Find the number that is 9,284 more than 18,39427,678
c Find the number that is 1,260 less than 7,296. 61036
d How much smaller is 3,698 than 21,065? 17 366
e By how much is 43,462 less than 50,693? 2231
f What number should be subtracted from 64,932 so that the difference is 13,894?
g
What will be the difference if the sum of 9,146 and 2,934 is subtracted from 23,891?
h What number should be added to 23,192 to get 47,938? 71,930
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Answer 1

Step-by-step explanation:

Given 3332,

Resolve 3332 into prime factors, we get

3332=2×2×7×7×17=(22×72×17)

Now to get perfect square we have to multiply the above equation by 17

Then we get, 3332=2×2×7×7×17×17

New number =(4×49×289)

=(22×72×172)

Taking squares as common from the above equation we get

∴ New number =(2×7×17)2

=(238)2

Hence, the new number is square of 238

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