Lesson · Grade 5 · Mathematics

Decimal place value: tenths, hundredths and thousandths

  • Grade 5
  • Mathematics
  • 1 min 19 s
  • British Columbia
  • BC5-MA-04

The digits of 0.235 sit in a place value chart, and each one shades its own part of a bar cut into 10 blocks, 100 strips and 1000 squares while it is written as a fraction: 2/10, 3/100 and 5/1000. Counting the shaded squares (200 + 30 + 5 = 235 out of 1000) shows that 0.235 = 235/1000, ending on the recap "2 tenths, 3 hundredths and 5 thousandths."

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In one sentence

The question this lesson answers

What is each digit in 0.235 worth?

The digits sit in the ones, tenths, hundredths and thousandths places.

Transcript

What the lesson says

What is each digit in 0.235 worth?

The digits sit in the ones, tenths, hundredths and thousandths places.

Cut one whole into 10 equal blocks, so each block is one tenth.

The 2 means 2 tenths, so shade 2 blocks.

Cut each block into 10 strips, so each of the 100 strips is one hundredth.

The 3 means 3 hundredths, so shade 3 strips.

Cut each strip into 10 squares, so each of the 1000 squares is one thousandth.

The 5 means 5 thousandths, so shade 5 squares.

2 blocks of 100 squares make 200 squares.

3 strips of 10 squares make 30 squares.

200 plus 30 plus 5 makes 235 squares.

235 out of 1000 squares are shaded, so 0.235 is 235 thousandths.

So 0.235 is 2 tenths, 3 hundredths and 5 thousandths.

Curriculum

Where this fits

The outcomes and strands follow the British Columbia curriculum.