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What's the rule between the topic 2x2=4 4X4= 12 2X3=6 in the first volume of mathematics in the second grade of primary school and peers in the class?
2×2=4, 4×3= 12, 2×3=6.,

Multiplier amplification 1.5 times, multiplier amplification 2 times, product amplification 1.5×2=3 times.

If the multiplicand is constant and the multiplier is enlarged by 1.5 times, the product is enlarged by 1.5 times.

If the multiplicand is reduced to half of the original, the product is reduced to half of the original under the condition that the multiplier is unchanged. , 1,