Question 18 of 42intermediate🔧 ApplyNumerical8 marks

Let Us Solve. Also, identify remainder (if any) in the division problems. a) 25×3425 \times 34 b) 16×4316 \times 43 c) 68×1268 \times 12 d) 39×1339 \times 13 e) 125÷15125 \div 15 f) 94÷1194 \div 11 g) 440÷22440 \div 22 h) 508÷18508 \div 18

(a)
Answer

25×34=85025 \times 34 = 850

(b)
Answer

16×43=68816 \times 43 = 688

(c)
Answer

68×12=81668 \times 12 = 816

(d)
Answer

39×13=50739 \times 13 = 507

(e)
Answer

125÷15=8125 \div 15 = 8 remainder 55

(f)
Answer

94÷11=894 \div 11 = 8 remainder 66

(g)
Answer

440÷22=20440 \div 22 = 20 remainder 00

(h)
Answer

508÷18=28508 \div 18 = 28 remainder 44

Explanation

(a) 25×34=25×30+25×4=750+100=85025 \times 34 = 25 \times 30 + 25 \times 4 = 750 + 100 = 850 (b) 16×43=16×40+16×3=640+48=68816 \times 43 = 16 \times 40 + 16 \times 3 = 640 + 48 = 688 (c) 68×12=68×10+68×2=680+136=81668 \times 12 = 68 \times 10 + 68 \times 2 = 680 + 136 = 816 (d) 39×13=39×10+39×3=390+117=50739 \times 13 = 39 \times 10 + 39 \times 3 = 390 + 117 = 507 (e) 15×8=12015 \times 8 = 120, 125−120=5125 - 120 = 5, so remainder is 5 (f) 11×8=8811 \times 8 = 88, 94−88=694 - 88 = 6, so remainder is 6 (g) 22×20=44022 \times 20 = 440, no remainder (h) 18×28=50418 \times 28 = 504, 508−504=4508 - 504 = 4, so remainder is 4

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