Priority of operations with positive and negative integers and decimals

12 questions

1. Which operation is last in the priority of operations?
2. The __________ of a number is a number that, when added to the original number, gives the sum of 0
3. Without using a calculator, work out: 11\times5 - 2\times3 = ___
4. Without using a calculator, work out: 3000\;–\;(54\;–\;4)\times2\times5^2 = ___
5. Select the calculation with an answer of 1
6. Work out the value of 12 + 3 \times 10 - 8 + 1
7. Using the priority of operations, work out: 20-(-5)\times10 = ___
8. Using the priority of operations, work out: 100+(-50)\times2= ___
9. Using the priority of operations, work out the answer to (-8)+30\div2 = ___
10. Starting with the calculation with the lowest answer, put these calculations in order of size from lowest answer to highest answer.
11. Without using a calculator, evaluate 10+(-9)\div (-3)-(- 4)
12. Without using a calculator, evaluate 9.4 -3.2+ \frac {12^2} {\sqrt{75+25}}

License: OGL