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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
6 2 7
7 4 ×
4 × 7 =
28
4 × 20 =
80
4 × 600 =
2400
70 × 7 =
490
70 × 20 =
1400
70 × 600 =
+ 42000
46398