Jiangsu education publishing house answers to the first volume of comprehensive exercises of mathematics in grade three. The product of 1.2.3x4 should be four digits. What's the minimum number of entries?
There can be at least five in the box.
253x4
=(250+3)x4
=250x4+3x4
= 10 12
The product is 10 12. The product is a four-digit number.
Please adopt it if it helps.
If you have any questions about this question, good luck!