Answer:
Note : ^ means nakaraised nakataas, * means multiply, and / means divide.
1. 8x1+33- 10 ÷ 2+(9-7)^2
= 8*1+33-10/2+(9-7)^2
= 8*1+33-10/2+(2)^2
= 8*1+33-10/2+2^2
= 8*1+33-10/2+4
= 8+33-10/2+4
= 8+33-5+4
= 41-5+4
= 36+4
= 40
2. 20-8x2÷4-2+6x2
= 20-8*2/4-2+6*2
= 20-16/4-2+6*2
= 20-4-2+6*2
= 20-4-2+12
= 16-2+12
= 14+12
= 26
3. 3x 10-20÷2+8
= 3*10-20/2+8
= 30-20/2+8
= 30-10+8
= 20+8
= 28
4. 24÷8+ 12-5
= 24/8+12-5
= 3+12-5
= 15-5
= 10
5. 10+4^2 - ( 18 ÷6)+ 12-5
= 10+4^2-(18/6)+12-5
= 10+4^2-(3)+12-5
= 10+4^2-3+12-5
= 10+16-3+12-5
= 26-3+12-5
= 23+12-5
= 35-5
= 30
6. 30-5 x2+ 3^3
= 30-5*2+3^3
= 30-5*2+27
= 30-10+27
= 20+27
= 47
7. 12 (5^2-4) + 24÷8
= 12*(5^2-4)+24/8
= 12*(25-4)+24/8
= 12*(21)+24/8
= 12*21+24/8
= 252+24/8
= 252+3
= 255
8. 6^2-30÷5x 3+2
= 6^2-30/5*3+2
= 36-30/5*3+2
= 36-6*3+2
= 36-18+2
= 18+2
= 20
9. 3+5-6+ 8^2
= 3+5-6+8^2
= 3+5-6+64
= 8-6+64
= 2+64
= 66
10. 64÷8^2+ 100-10^2
= 64/8^2+100-10^2
= 64/8^2+100-100
= 64/64+100-100
= 1+100-100
= 101-100
= 1
