`7059-2350+1936 = ?xx50`

5437-3153+2284=?xx50

83% of 2350=?

Let's calculate mentally. 26 xx (-48) = 26 [2-50] = 26 xx 2-26 xx 50 = square-square = square

compụte the square roots of these. a) 256 b) 2025 c) 441 d) 9216 e) 1089 f) 15625 g) 1936 h) 3025 i) 12544

8, 31, 122, 485, 1936, 7739, ?

Express the following to four significant figure: i. 6.58768 xx 10^(5) ii. 8.35783 iii. 98.2350 iv. 0.003586 v. 90000

Express the following to four significant figure: i. 6.58768 xx 10^(5) ii. 8.35783 iii. 98.2350 iv. 0.003586 v. 90000

Find the no. of zeros in the product of (5 xx 10 xx 25 xx 40 xx 50 xx 55 xx 65 xx 125 xx 80)

The mean deviation about median of variates 13, 14, 15,...., 99, 100 is 1936 (b) 21.5 (c) 23.5 (d) 22