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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
1 6 9
3 6 9 ×
9 × 9 = 8 1
9 × 60 = 5 4 0
9 × 100 = 9 0 0
60 × 9 = 5 4 0
60 × 60 = 3 6 0 0
60 × 100 = 6 0 0 0
300 × 9 =
2700
300 × 60 =
18000
300 × 100 =
+ 30000
62361