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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
2 6 7
2 7 2 ×
2 × 7 = 1 4
2 × 60 = 1 2 0
2 × 200 = 4 0 0
70 × 7 = 4 9 0
70 × 60 = 4 2 0 0
70 × 200 = 1 4 0 0 0
200 × 7 =
1400
200 × 60 =
12000
200 × 200 =
+ 40000
72624