2. 5 x 15 = . . . x 5 = . . .
3. –29 + 9 = . . . + . . . = . . . b. Sifat Asosiatif 4. –15 + ((–13) + 30) = (–15 + . . . ) + 30 = . . . + . . . = . . .
5. 35 + (–15 + . . . ) = (35 + (–15)) + 40 = . . . + . . . = . . .
6. 30 x (–20 x . . . ) = (30 x (–20)) x 5 = . . . x . . . = . . .
7. (–25) x (–40 x 11) = (–25 x ( . . . )) x 11 = . . . x . . . = . . . c. Sifat Distributif
8. (25 x . . . ) – ( . . . x 4) = 25 x (8 – 4) = . . . – . . . = . . .
9. (27 x 3) – (21 x 3) = . . . x (27 – 21) = . . . x . . . = . . .
10. (3 x 25) + (3 x 50) = . . . x (25 + 50) = . . . x . . . = . . .
1. –27 + 13 = 13 + ( . . . )
Jawaban:
1. -27+13=13+(-27)= -14
2. 5×15=15×5=75
3. -29+9=9+(-29)=-20
4. -15+((-13)+30)=(-15+(-13))+30=-28+30=2
5. 35+(-15+40)=(35+(-15))+40=20+40=60
6.30×(-20×5)=(30×(-20))×5=-600×5=-3000
7. (-25)×(-40×11)=(-25×(-40))×11=1000×11=11.000
8.(25×8)-(25×4)=25×(8-4)=200-100=100
9. (27×3)-(21×3)=3×(27-21)=3×6=18
10. (3×25)+(3×50)=3×(25+50)=3×75=225