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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
2 7 3
2 1 8 ×
8 × 3 =
24
8 × 70 =
560
8 × 200 =
1600
10 × 3 =
30
10 × 70 =
700
10 × 200 =
2000
200 × 3 =
600
200 × 70 =
14000
200 × 200 =
+ 40000
59514