1) The input is 6. What is the output? a) 10 b) 45 c) 60 d) 72 2) The input is 2x. Write an expression for the output. Simplify your answer. a) 7x + 3 b) 14x + 6 c) 14x + 3 d) 17x 3) The output is 17. Find the input. a) 14 b) 2 c) 20/7 d) 140 4) When The input is 12, the output is 0.4. Find the missing number. You must use multiplication or division. a) x 10 b) divide by 10 c) x 100 d) divide by 100 5) The input is 10, the output is 20. Find the missing number. You must use multiplication or division.  a) x 10 b) x 20 c) Divide by 2 d) x 0.2 6) Work out the output when the input is 6. a) 15 b) 23 c) 3.75 d) 4x - 9 7) Work out the input when the output is 35 a) 44 b) 11 c) 131 d) 4x 8) Work out the output when he input is 13. a) 78 b) 80 c) 21 d) 0 9) Work out the output when the input is -2. a) -5 b) 5 c) -7 d) 0 10) Mike says that he knows the output, he can work out the input by dividing by 3 and then adding 7. Explain why Mike is wrong. a) Mike is not wrong b) he got them in the wrong order c) he needs to do opposite calculations d) he needs to do -7, then times 3

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