cindydixon4352 cindydixon4352
  • 12-11-2021
  • Mathematics
contestada

Step by step solve 18×20, I find double 18 and then multiply by 10

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waynejoneskc waynejoneskc
  • 12-11-2021
18x20 is 360
18x10 is 180
18x10 again is 180
180+180=360
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