Answer:
Quick check:
-2+5=3
-12-13=-25
-15+-3=-18
-5+10=5
27+-3=24
Day 1:
-1/4*-2/3=1*2/4*3=2/12=1/6
6-2.5=4-0.5=3.5
30-50=-20
-15+-20=-35
-12+-3=-15
45+-15=30
-80+-2=-82
Day 2:
7/5*5/9=7/9
2/3(3x+6)=2x+4
Step-by-step explanation:
1: -2+5= 3
2: -12 - 13= -25
3: -15• -3= 45
4: -5 • 10 = -50
5: 27 ÷ -3 = -9
6: 1/6
7: 6 - 2 1/2 = 15
8: 30 - 50 = -20
9: -15 - -20 = 5
10: -12 • -3 = 36
11: 45 + -15 = 30
12: -80 + -2 = -82
13: 1 2/5 ÷ 1 4/5 = 7/9
14: 2/3(3x + 6)= 14
