1. 84-60= 2424-24=02. 18-72= -54(-54)-(144)= -1983. 54-108= -54(-54)-(225)= -279Espero te ayude.
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1. 84-60= 24
24-24=0
2. 18-72= -54
(-54)-(144)= -198
3. 54-108= -54
(-54)-(225)= -279
Espero te ayude.