castma castma
  • 21-11-2016
  • Mathematics
contestada

which is one way to check out the answer to 120÷4=30

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SazBaz1999 SazBaz1999
  • 21-11-2016
To check whether or not it is correct, you would multiply 30 by 4. 
30 x 4 = 120

If you need to do it in smaller chunks, multiply 4 by 10
4 x 10 = 40
And then multiply the 40 by 3
40 x 3 = 120
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elloitssky
elloitssky elloitssky
  • 21-11-2016
Work it backwards... 30•4=120
Answer Link

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