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3 cijfers X 3 cijfers met hulp [2]

3 cijfers X 3 cijfers met hulp [2]

 
1 2 2
2 3 0 ×
0 × 2 = 0
0 × 20 = 0
0 × 100 = 0
30 × 2 =
60
30 × 20 =
600
30 × 100 =
3000
200 × 2 =
400
200 × 20 =
4000
200 × 100 =
+ 20000
28060