Question

solve all of these. ​

Answer 1

Step-by-step explanation:

1) -16

2) -30+5 ÷ {(-20)+(-5)}

= -25÷(-20-5)

= -25÷(-25)

= 1

3) 6/10 ÷ -12/20

= 6/10×20/-12

= = -1

4) -189-(-188)

= -189+188

= -1

5) a) (-7)×8

6) (6/10 ÷ 12/10) ×1/6

=(6/10×10/12)×1/6

=1/2×1/6

= 1/12