Terug

3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
1 2 7
1 7 ×
7 × 7 = 4 9
7 × 20 = 1 4 0
7 × 100 = 7 0 0
10 × 7 =
70
10 × 20 =
200
10 × 100 =
1000
2159