11× 55 divide 5 + 9 = ? (a) 120 (b) 140 (c) 48 (d) 180 (e) None of these

(c) ?/46x16=368 ?=368x46/16=1058

(a) ?= 351/6x0.5=117

(d) 18x?=7776/12 ?=7776/12x18=36

(e) 59475/√?=195x5 √?=59475/195*5=61 61 × 61 = 3721

(d) 1248x5/6-1150x4/5 = 1040 – 920 = 120

(b) ?2 = (142 – 132) ÷ 3 = (14 + 13) (14 – 13) ÷ 3 =27×1/3=9 ? = 9 = 3

(c) ?= √1296 divide √36 =36 divide 6 =6

(c) 112 ÷ 7 ÷ 4 = 8 × ? 8 x ?= 112/7x4 ?=4/8=1/2=0.5

(d) 1248 x 5/6 - 1150 x 4/5 = 1040 – 920 = 120

(c) x + y = 18 (x + y)2 = 182 = 324 x2 + y2 + 2xy = 324 x2 + y2 = 324 – 2xy x2 + y2 = 324 – 2(72) x2...