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3 cijfers X 2 cijfers met hulp [1]

3 cijfers X 2 cijfers met hulp [1]

 
7 1 6
2 5 ×
5 × 6 = 3 0
5 × 10 = 5 0
5 × 700 = 3 5 0 0
20 × 6 =
120
20 × 10 =
200
20 × 700 =
14000
17900