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3 cijfers X 2 cijfers met hulp [2]

3 cijfers X 2 cijfers met hulp [2]

 
1 5 1
1 7 ×
7 × 1 =
7
7 × 50 =
350
7 × 100 =
700
10 × 1 =
10
10 × 50 =
500
10 × 100 =
+ 1000
2567