Write an addition and a subtraction according to 128 + a = 36
a+128=36
128-36=a
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Write an addition and a subtraction according to 478-99 = 379
99+379=478
478-379=99
The six numbers 8.16.20.24.32 and 36 constitute an addition and a subtraction, and each number can only be used once
Addition:
16+20=36
Subtraction:
32-8=24