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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
1 7 5
2 3 3 ×
3 × 5 =
15
3 × 70 =
210
3 × 100 =
300
30 × 5 =
150
30 × 70 =
2100
30 × 100 =
3000
200 × 5 =
1000
200 × 70 =
14000
200 × 100 =
+ 20000
40775