Use decimal notation for fractions with denominators 10 or 100; read and write decimal numbers as fractions (e.g. 0.62 = 62/100, 0.71 = 71/100)
A decimal number and a fraction can be the same amount, just written two different ways. Look at the digits after the decimal point. The first digit is tenths. The second digit is hundredths.
Look at 0.62. There are two digits after the point, 6 and 2, so the number is 62 hundredths in all. That means 0.62 = 62/100.
Now try it the other way. The fraction 7/100 has a denominator of 100, so it needs two digits after the point. Written as a decimal, that is 0.07.
Count the digits after the decimal point. One digit means tenths, out of 10. Two digits mean hundredths, out of 100.
One digit after the decimal point means tenths, two digits mean hundredths, and either way it's the same amount as the matching fraction.
The rewritten reading was written for this dataset.
Last year you cut the Meadow Lane bed into a 10 by 10 grid of seed squares and found that every tenth is worth ten hundredths. This summer the allotment has a Saturday stall, and the chalkboard above it is small.
Mia has sold 3 of the 10 trays of strawberries. She wants the short way to chalk 3/10, the way that uses a point. Which one goes on the board?
Jobs that lean on this skill. Follow one to see everything it is built on.
16 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.