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3 cijfers X 3 cijfers met hulp [1]

3 cijfers X 3 cijfers met hulp [1]

 
8 6 9
3 1 6 ×
6 × 9 = 5 4
6 × 60 = 3 6 0
6 × 800 = 4 8 0 0
10 × 9 = 9 0
10 × 60 = 6 0 0
10 × 800 = 8 0 0 0
300 × 9 =
2700
300 × 60 =
18000
300 × 800 =
+ 240000
274604