Question

1. 3×(-5)-(-12) 2. (1-2+3-4):2
3.(-45):(3-8)+(-2)×2 4. 13+24:(-2)
5. 25÷(-5)-(2-7) ​

Answer 1

1) 3x(-5)-(-12)= -15+12 = -3

2)(1-2+3-4):2= (-2):2 = -1

3)(-45):(3-8)+(-2)x2= 9-4 = 5

4)13+24:(-2)= 13-12 = 1

5) 25:(-5)-(2-7)= -5+5 =0