Hitung Cepat 2 Bilangan

Hitung Cepat 2 Bilangan

S.M. Debora

23 X 34 =

23

34

...........

3X4 = 1 2 tulis angka 2 di paling blakang

2X4 = 8 lalu 3 X 3 = 9 jumlah semua 8+9+1 yg disimpan = 1 8

2 X 3 = 6 +1 = 782

56 x 42 =

56

42

........

6X2 = 1 2

5X2 = 10 , 6X4 = 24 , 24 +10 + 1 = 3 5

5X4= 20 + 3 = 23

2.352