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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
3 1 8
2 3 6 ×
6 × 8 = 4 8
6 × 10 = 6 0
6 × 300 = 1 8 0 0
30 × 8 = 2 4 0
30 × 10 = 3 0 0
30 × 300 = 9 0 0 0
200 × 8 =
1600
200 × 10 =
2000
200 × 300 =
+ 60000
75048