missy19 missy19
  • 11-09-2015
  • Mathematics
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( 2 tens 1 one ) x 10 standard form

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amsoccerlover2
amsoccerlover2 amsoccerlover2
  • 11-09-2015
Its 21 x 1 x 10 because 2 tens is 10+10 and that equals 20 and 1 stays the same x 10
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danielmaduroh
danielmaduroh danielmaduroh
  • 14-09-2018

Tens means groups the units into groups of 10. Therefore:

  • 2 tens = 20

(2 tens 1 one ) x 10 standard form is:

(20 + 1) x 10 = 21 x 10 = 210

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