Question 3 of 22intermediate🔧 ApplyNumerical5 marks

Find the values of the following expressions by writing the terms in each case. (a) 28 - 7 + 8 (b) 39 - 2×62 \times 6 + 11 (c) 40 - 10 + 10 + 10 (d) 48 - 10×210 \times 2 + 16 ÷ 2 (e) 6×36 \times 3 - 4×84 \times 8 × 5

(a)
Answer

29

(b)
Answer

38

(c)
Answer

50

(d)
Answer

36

(e)
Answer

-142

Explanation

(a) Terms: 28, -7, 8. Value = 28 + (-7) + 8 = 29 (b) First 2×62 \times 6 = 12. Terms: 39, -12, 11. Value = 39 + (-12) + 11 = 38 (c) Terms: 40, -10, 10, 10. Value = 40 + (-10) + 10 + 10 = 50 (d) First 10×210 \times 2 = 20 and 16 ÷ 2 = 8. Terms: 48, -20, 8. Value = 48 + (-20) + 8 = 36 (e) First 6×36 \times 3 = 18 and 4×84 \times 8 × 5 = 160. Terms: 18, -160. Value = 18 + (-160) = -142

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