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Grade 5 · Maths · Lessons
Ten times and one tenth
🔟ten⬅️left➡️right•point
Ten times and a tenth.
The big ideaOne place left is ten times as much. One place right is a tenth.

How it works

One place left is ten times as much. One place right is a tenth.

The 9 in the tens place of 98.41 moves one place right: it is worth 9 ones.

Compare two digits: the right 4 in 244.01 is a tenth of the left 4.

Left• 10 times biggerRight• 10 times smaller
Place values.

Example 1: One place right

  1. The 9 in the tens place of 98.41 moves one place right. It is worth ?
  2. The 9 is in the tens place of 98.41.
  3. One place right is the ones place: 9.
  4. So the answer is 9.

Example 2: One place left

  1. The 7 in the tens place of 74.04 moves one place left. It is worth ?
  2. The 7 is in the tens place of 74.04.
  3. One place left is the hundreds place: 700.
  4. So the answer is 700.

Example 3: Compare two digits

  1. In 244.01, the right 4 is what part of the left 4? ?
  2. The two 4s in 244.01 are next to each other.
  3. The right 4 is a tenth of the left 4, which is 0.1.
  4. So the answer is 0.1.

Words to know

place value
What a digit is worth by its place.
tenth
One of ten equal parts.

Watch out

Try it

  1. The 7 in the ones place of 7.112 moves one place right. It is worth ?
  2. The 4 in the hundredths place of 18.749 moves one place right. It is worth ?
  3. The 1 in the tens place of 10.555 moves one place right. It is worth ?
Answers: 1. 0.7 · 2. 0.004 · 3. 1
For grown-upsUse a place-value chart to slide a digit left and right.
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