Mathematics
Simplify :
(i) 39 - 18 ÷ 3 + 2 x 3
(ii) 8 + 2 x 5
(iii) 5 x 8 - 6 ÷ 2
(iv) 19 - 9 x 2
(v) 15 ÷ 5 x 4 ÷ 2
Whole Numbers
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Answer
(i) 39 - 18 ÷ 3 + 2 x 3
= 39 - 6 + 2 x 3
= 39 - 6 + 6
= 33 + 6 [Addition and subtraction from left to right]
= 39.
Hence, 39 - 18 ÷ 3 + 2 x 3 = 39.
(ii) 8 + 2 x 5
= 8 + 10
= 18.
Hence, 8 + 2 x 5 = 18.
(iii) 5 x 8 - 6 ÷ 2
= 5 x 8 - 3
= 40 - 3
= 37.
Hence, 5 x 8 - 6 ÷ 2 = 37.
(iv) 19 - 9 x 2
= 19 - 18
= 1.
Hence, 19 - 9 x 2 = 1.
(v) 15 ÷ 5 x 4 ÷ 2
= 3 x 4 ÷ 2
= 3 x 2
= 6.
Hence, 15 ÷ 5 x 4 ÷ 2 = 6.
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