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1. Write down all the integers in the set A = { -6, -4,0.5, ^{1}⁄_{4}, 2^{1}⁄_{2} ,4.5, 200 }
2. Simplify 225-(-50)-275
3. Find the sum of (81-(-2)(3)+11)
4. Simplify (-12-18)-(-50)
5. What must be subtracted from -17 to obtain -3?
6. Simplify (-5+9)+(2+(-6))+(-3)
7. Evaluate (-25+33)+(-8+12)+(10)
8. What must be subtracted from -34 to obtain 33?
9. Arrange the following integers in ascending order 9,2,-5,-8,0,-1,-2
10. Evaluate (-36÷(-6+4))x5
11. Simplify -25x(-4)÷2
12. When a certain number is divided by -13, the answer obtained is 11.Find the number.
13. Simplify: -15 – 7 + 3(3 – 8)
14. Evaluate 5(8-3) + 7(3-7).
15. Evaluate 5(8+3) – 7(3-7).
16. What must be subtracted from -12 to obtain 24?
17. Simplify 569-(-26)-18
18. Simplify (67-21)-(33-(-17))
19. Simplify (-2-6)-(45-(-10))-13
20. If the reading on a thermometer is -27°C, what will be the new reading if the temperature increases by 12°C?