1. -34-(-12)= 2.3×(-20):-4-15:3+3

Question

Matematika Diposting : 2017-10-06 Diupdate : 2017-10-07 Naira595959

Pertanyaan

1. -34-(-12)=

2.3×(-20):-4-15:3+3

Answer 1

1. -34-(-12) = -34 + 12
= -22
2. 3x(-20):-4-15:3+3
-60 : -4 - 5 + 3
15 - 5 + 3
10+3
13

Answer 2

1. -34 - ( -12 )
= -22

2. 3 × ( -20 ) ÷ -4 - 15 ÷ 3 + 3
= ( -60 ) ÷ -4 - 15 ÷ 3 + 3
= 15 - 15 ÷ 3 + 3
= 15 - 5 + 3
= 10 + 3
= 13