Bilangan Positif & Negatif Serta Operasinya
Penjumlahan Perkalian Pengurangan Pembagian
6 + 2 = 8 6 x 2 = 12 6 ÷ 2 = 3 2 + 6 = 8 2 x 6 = 12 2 ÷ 6 = 1/3 6 – 2 = 4 2 – 6 = . . . Kehidupan sehari-hari???
Garis bilangan . . . 1 2 3 4 5 6 7
4 + 2 = 6 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7
4 – 2 = 2 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7
2 – 4 = . . . -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7
1) 4 + 3 = . . . 2) – 1 – 5 = . . . . 6) – 5 – (– 4) = . . . 7) 7 + (– 5) = . . . 3) 7 – 5 = . . . 4) 1 – 6 = . . . 5) – 2 + 5 = . . . -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7
Try this ! ! ! ! 1) 15 – 25 = . . . 5) – 23 – 22 = . . . 2) – 50 + 40 = . . . . 6) – 75 – (-45) = . . . 3) 17 + (–15) = . . . 7) 70 – (– 50) = . . . 4) – 22 – 10 = . . . 8) 16 – 56 = . . .
(+) x (+) = (+) (+) : (+) = (+) (–) x (–) = (+) (–) : (–) = (+) (+) x (–) = (–) (+) : (–) = (–) (–) x (+) = (–) (–) : (+) = (–)
1) 3 x 15 = . . . 4) – 50 : 10 = . . . 2) – 4 x (– 25) = . . . . 5) – 5 x 22 = . . . 3) 25 : (–5) = . . . 6) – 75 : (– 25) = . . .
Try this ! ! ! ! 1) 5 + (– 15) x 3 = . . . 2) – 2 : (– 10 + 100) = . . . 3) – 15 x (– 5) + 10 = . . .
Try this ! ! ! ! 1) 50 x (– 2) : (– 5) = . . . 2) – 1200 : (2 x 100) = . . . 3) – 375 : (– 5) x 10 = . . .