Explain how using basic fact can help find 10x20x30x40 mentally

asked Apr 12, 2018 163k views

4 votes

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4 votes

well just take the 0 and start with 1 × 2 = 2×3=6×4=240000 than add the 0 that u took out

JArgente answered Apr 14, 2018

7.5k points

1 vote

2x3x4 = 24
Add the 4 zeros to the end
240,000

Suelee answered Apr 16, 2018

7.4k points

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