0.272 - 0.232
.50
.27
0.02
0.2
672 - 332 = ?
67
33
34
3400
51 × 49 = ?
2499
2500
5149
2501
2x2 + 8x - 24 = ?
(x + 6)(2x - 4)
(x - 6)(2x - 4)
(x - 6)(2x + 4)
(x + 6)(2x + 4)
-5n2 + 25n - 20 = ?
(n + 1)(20 - 5n)
(n - 1)(20 - 5n)
(n - 1)(5n - 20)
(n + 1)(5n + 20)
xu + xv + yu + yv = ?
(x + y)(u + v)
(x + u)(y + v)
(x - u) (y - v)
(x + v) (y + x)
x2 + 3x + 2 = ?
(x + 1)(x + 2)
(x - 1)(x + 5)
(x + 1)(x - 5)
12.5 × 12.5 - 2 × 12.5 × 0.5 + 0.5× 0.5 = ?
144
121
12
12.55
(x + a)(x - b) = ?
x2 + (a - b) x - ab
x2 + (a + b) x - ab
x2 + (a + b)x + ab
x2 + (a - b) x + ab
Evaluate 237 × 237 + 363 × 363 + 2 × 237 × 363 = ?
360000
600
3600
36000
