# Find the product, using suitable properties: (a) 26 × (– 48) + (– 48) × (–36) (b) 8 × 53 × (–125) (c) 15 × (–25) × (– 4) × (–10) (d) (– 41) × 102 (e) 625 × (–35) + (– 625) × 65 (f) 7 × (50 – 2) (g) (–17) × (–29) (h) (–57) × (–19) + 57 NCERT Class 7th Mathematics Chapter 1 Integers

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by n4ambeashawla

2016-04-12T00:24:52+05:30
2016-04-12T00:28:13+05:30

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PEMDAS is the order of operation.
Parenthesis; Exponents; Multiply; Divide; Add; Subtract.

(a) 26 × (– 48) + (– 48) × (–36) ⇒ -1248 + 1728 = 480

(b) 8 × 53 × (–125) ⇒ 424 x -125 = -53,000

(c) 15 × (–25) × (– 4) × (–10)
⇒ 15 * -1000 = -15,000

(d) (– 41) × 102 = -4182

(e) 625 × (–35) + (– 625) × 65
-21875 + (-40625) = -62,500

(f) 7 × (50 – 2) ⇒ 7 * 48 = 336

(g) (–17) × (–29) = 493

(h) (–57) × (–19) + 57
1,083 + 57 = 1,140