Simplify the expression-i 45 - 5-20 - 4-12ii 38-8 - 2 - 5-13iii 53-47 - 3221iv 3 - 485-5-15 - 3-2

(i) nbsp; 45 #247;5+20 #215;4 12=9+80 12=89 12=77 nbsp; nbsp; nbsp; (ii) nbsp; 38 8 #215;2 #247;5+13=30 #215;2 #247;5+13=60 #247;5+13= ...

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Importance of Brackets

Simplify the ...

Question

Simplify the expression.

(i) $45 \div 5 + 20 \times 4 - 12$ (ii) $(38 - 8) \times 2 \div 5 + 13$

(iii) $\frac{5}{3} + \frac{4}{7} \div \frac{32}{21}$ (iv) $3 \times \{4 [85 + 5 - (15 \div 3)] + 2\}$

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(a) 12 + [{1 + (15 − 3)} × 4]

(b)

(c)

(d)

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