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3 cijfers X 3 cijfers met hulp [2]

3 cijfers X 3 cijfers met hulp [2]

 
3 1 7
3 6 6 ×
6 × 7 = 4 2
6 × 10 = 6 0
6 × 300 = 1 8 0 0
60 × 7 =
420
60 × 10 =
600
60 × 300 =
18000
300 × 7 =
2100
300 × 10 =
3000
300 × 300 =
+ 90000
116022