b) 7 × = 7 432 × = 432 519 × = 0 1 × = 0 × 0 = 0 × 1 = 3 456
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b) 7 × ? = 7 432 × ? = 432 |
519 × ? = 0 1 × ? = 0 |
? × 0 = 0 ? × 1 = 3 456 |
b)
7 × 1 = 7
432 × 1 = 432
519 × 0 = 0
1 × 0 = 0
2 × 0 = 0
3 456 × 1 = 3 456