Estimate the answer to: (4.28 x sqrt(99))/7.83
4.28 rounds down to 4; sqrt(99) is approximately 10; 7.83 rounds up to 8
So an appropriate estimate would be:
(4x10)/8 = 40/8 = 5
AT
Related Maths GCSE answers
All answers ▸Prove that the square of an odd number is always 1 more than a multiple of 4
1) 3x + y = 11 2) 2x + y = 8
Expand (2x-4)(x+3)
Karen got 32 out of 80 in a maths test. She got 38% in an English test. Karen wants to know if she got a higher percentage in maths or in English. Did Karen get a higher percentage in maths or in English?