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163.1
\( 0.121:0.1= \)
The decimal point shows the place value of each digit. Ignoring it changes 652.4 into 6,524, which is completely different! Always keep track of where the decimal belongs.
The decimal point in your answer goes directly above the decimal point in the dividend (the number being divided). Line them up vertically!
Break it down: First divide 652 by 4 = 163, then divide 0.4 by 4 = 0.1. Add them together: 163 + 0.1 = 163.1
Yes! Use multiplication to check: 163.1 × 4 should equal 652.4. If it doesn't match exactly, you made an error somewhere.
Sometimes you'll get repeating decimals or need to round. For this problem, 652.4 ÷ 4 works out perfectly to 163.1 with no remainder!
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