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3 cijfers X 3 cijfers met hulp [2]

3 cijfers X 3 cijfers met hulp [2]

 
2 6 9
1 3 8 ×
8 × 9 = 7 2
8 × 60 = 4 8 0
8 × 200 = 1 6 0 0
30 × 9 =
270
30 × 60 =
1800
30 × 200 =
6000
100 × 9 =
900
100 × 60 =
6000
100 × 200 =
+ 20000
37122