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2 answers:
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1.) 10² + 4 · (6 + 3) - (27 ÷ 9) - 6 = 127
For these types of questions, try to think of it like, well since the last number is negative 6, let me try to get everything before it to equal 133 so it will end up being 127. :)
2.)
÷ 
·(0.3 + 0.42)
= 1/10 ÷ 1/2 + 1.6 · (0.72)
= 1/5 + 1.152
= 1.352
Remember that dividing a fraction by a fraction is like multiplying the coefficient of the second one to the original one.
3.) 15 · 1/2 ÷ 3/4
Remember that product is multiplication and quotient is division.
4.)
Remember that difference is subtraction and separating into three parts is like dividing it into three parts.
Hope this helped and ask me for further explanation! ^-^
For these types of questions, try to think of it like, well since the last number is negative 6, let me try to get everything before it to equal 133 so it will end up being 127. :)
2.)
= 1/10 ÷ 1/2 + 1.6 · (0.72)
= 1/5 + 1.152
= 1.352
Remember that dividing a fraction by a fraction is like multiplying the coefficient of the second one to the original one.
3.) 15 · 1/2 ÷ 3/4
Remember that product is multiplication and quotient is division.
4.)
Remember that difference is subtraction and separating into three parts is like dividing it into three parts.
Hope this helped and ask me for further explanation! ^-^