Question

1. Tính hợp lí :

a, -37 + 14 + 16 + 37

b, - 24 + 6 + (-10 ) + 24

Answer 1

a) \(-37 + 14 + 16 + 37 \)

\(= [ ( -37) + 37 ] + ( 14 + 16 )\)

= \(0+30=30\)

b) \(-24+6+(-10)+24\)

= \([(-24)+24] + [6+(-10)]\)

= \(0+(-4) = (-4)\)

Answer 2

a)-37+14+16+37=(-37+37)+(14+16)=0+30=30

b)-24+6+(-10)+24=(-24+24)+[6+(-10)]=0+(-4)=-4

Answer 3

a, -37 + 14 + 16 + 37= (-37 +37) + (14+16)

= 0 +30=30

b, - 24 + 6 + (-10 ) + 24= (-24+ 24) + (-10+6)

= 0 + (-4)= -4

Answer 4

a.-37+14+16+37

=[(-37)+37]+[14+16]

= 0 + 30 = 30

b.-24+6+(-10)+24

=[(-24)+24]+[6+(-10)]

= 0 + -4 = -4