[tex] 1. \: {5}^{2} \times 7[/tex]
[tex]2. \: 80 - {4}^{2} [/tex]
[tex]3. \: 3 \times (10 + 4[/tex]
[tex]4. \: {2}^{2} + (6 - 3)[/tex]
[tex]5. \: 72 \div 9 - 7[/tex]
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1. 175
= 5² × 7
Calculate 5 to the power of 2 and get 25.
= 25 × 7
Then multiply 25 and 7
= 175
2. 64
= 80 – 4²
Calculate 4 to the power of 2 and get 16.
= 80 – 16
Then subtract 80 and 16
= 64
3. 42
= 3 × (10 + 4)
Add 10 and 4 and get 14
= 3 × 14
Then multiply 3 and 14
= 42
4. 7
= 2² + (6 – 3)
Calculate 2 to the power of 2 and get 4.
= 4 + 6 – 3
Then add 4 and 6 and subtract 3 get 10
= 10 – 3
Then subtract 10 – 3
= 7
5. 1
= 72 ÷ 9 – 7
Divide 72 by 9 and get 8
= 8 – 7
Then subtract 8 and 7
= 1
( sorry I don't know how to edit )