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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
3 7 0
3 6 ×
6 × 0 =
0
6 × 70 =
420
6 × 300 =
1800
30 × 0 =
0
30 × 70 =
2100
30 × 300 =
+ 9000
13320