Warm up:
Place operation symbols between the ones to make the equations true. (Use the four operations and parentheses.)
1 1 1 1 = 0
1 1 1 1 = 1
1 1 1 1 = 2
1 1 1 1 = 3
1 1 1 1 = 4
Work out:
4 4 4 4 = 0
4 4 4 4 = 1
4 4 4 4 = 2
4 4 4 4 = 3
4 4 4 4 = 4
4 4 4 4 = 5
4 4 4 4 = 6
4 4 4 4 = 7
4 4 4 4 = 8
4 4 4 4 = 9
4 4 4 4 = 10
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