Question

think on and find : which is easier and why ? a) 6 x 5 x3 or 6x(5x3). b) (9x4)x25 or 9x(4x25)​

Answer 1

Answer:

a)

$6 \times 5 \times 3 \\ 30 \times 3 \\ 90 \\ or$

$6 \times (5 \times 3) \\ 6 \times 15 = 90$

b)

$(9 \times 4) \times 25 \\ 36 \times 25 \\ 900$

or

$9 \times (4 \times 25) \\ 9 \times 100 = 900$

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