This task is from Tools 4 NC Teachers. Students write expressions using parentheses that equal a "target number." This is remixable. 

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Choose four one-digit numbers.  Choose any numbers you like.  (You MAY use 0). 

 Write an expression that has a value of 10.  Follow the rules below:

 You must use all four of your numbers. You may use any combination of the following symbols: +  -  x  ÷  ( )

 Using the same numbers, write an expression that has a value of 9.

Write an expression that has a value of 8.

Write an expression that has a value of 7.

Write an expression that has a value of 6.

Write an expression that has a value of 5.

Write an expression that has a value of 4.

Write an expression that has a value of 3.

Write an expression that has a value of 2.

Write an expression that has a value of 1.

Write an expression that has a value of 0.

Are there any that aren’t possible with the 4 numbers you have chosen?  If so, choose another 4 numbers and try to reach that target with your new four numbers.