Compatible Numbers
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Use compatible numbers to estimate the quotient: $595 divided by 25
$600/30=20
Compatible numbers
numbers that are easily to compute mentally
Use compatible numbers to estimate the quotient: 228 divided by 19
200/20=10
Use compatible numbers to find two estimates: 396 divided 42
400/40=10 and 360/40=9
Use compatible numbers to find two estimates: 6078 divided by 88
5400/90=60 and 6300/90=70
Use compatible numbers to estimate the quotient: 595 divided by 17
600/20=30