MATHS [2 Mark Question Answer]

The integers between -15 and 15 are:
-12, -6, 0, 6, and 12
That is divisible by 2 and 3.

10 × (-12) + 5 × (-12)
⇒ -120-60
= -180

(-11) ×(-15) + (-11) × (-25)
⇒ 165 + 275
= 440

(-3) × (-6) × (-9) × (-12)
⇒ 18 × 108
= 1944

(-2) × (-3) × (-4) × (-5) × (-6)
⇒ 6 × 20 × (-6)
= 120 × (-6)
= - 720

∵A number changes from = 40 to - 30
⇒ 40 – (- 30)
40 + 30 = 70
∴70, it will be decreases.

∵ A number changes from = - 20 to 30
⇒ - 20 – 30 = - 50
∴ - 50, it will be increases.

The product of two integers = -180 One integer = 12
∴ Second integer = -180 – 12 = -15

(-13) x (-17)+ (-187 - 11)
⇒ (-13) x (-17) + (-17)
⇒ 221 – 17 = 204

The integers between -5 and 5 are:
-4, -3, -2, 0, 0, 2, 3 and 4
That is divisible by 2 or 3.

12 × (6 – 8) or 12 × 6 – 8
12 × (6 – 8) = 12 (-2) = -24
12 × 6 – 8 = 72 – 8 = 64
∴12 × 6 – 8 > 12 × (6 - 8)

(8 + 10) × 15 or 8 + 10 × 15
(8 + 10) ×15 = 18 × 15 = 270
8 + 10 × 15 = 8 + 150 = 158
∴ (8 + 10) × 15 > 8 + 10 × 15