a.7 + 8 = … + 7 = …
b.(-9)+12=12+…=…
c.(-11)+(-8)=…+(-11)=…
d.6+(-15)=…+(-11)=…
2.gunakan sifat komutatif perkalian untuk menyelesaikan soal berikut.
a.5×8 =…×5 = …
b.(-7)×9=9×…=…
c.5×(-12)=…×5=…
d.(-6×(-14)=…×…=…
1.gunakan sifat komutatif penjumlahan untuk menyelesaikan soal berikut.
Jawaban:
1) PENJUMLAHAN☆
A. 7 + 8 = 8 + 7 = 15
B. (–9) + 12 = 12 + (–9) = 3
C. (–11) + (–8) = (–8) + (–11) = –19
D. 6 + (–15) = (–15) + 6 = –9
2) PERKALIAN☆
A. 5 × 8 = 8 × 5 = 40
B. (–7) × 9 = 9 × (–7) = –63
C. 5 × (–12) = (–12) × 5 = –60
D. (–6) × (–14) = (–14) × (–6) = 84
#smga membantu:")