Question

(a) 300 – 4[20 + {30 – 20}]​

Answer 1

$300 - 4(20 + (30 - 20))$

$300 - 4(20 + 10)$

$300 - 4 \times 30$

$300 - 120$

$180$

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Answer 2

Answer:8880

Step-by-step explanation:

300-4=296

So,296×20=5920

    296×30=8880

∴5920+{8880-5920}=

5920+2960=8880

hope it helps you

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