Abacus Place Value Worksheet Best Sale | thepagb.org.uk - Free Printable

I will solve this problem by explaining how to draw the beads on the abacus for each given number.

Step 1: Understand the Abacus Structure

First, I need to understand what the "T" and "O" labels mean. In the context of an abacus for learning place value, "T" stands for Tens and "O" stands for Ones (or Units). Each column represents a digit in the number:
- The left column (T) represents the tens place.
- The right column (O) represents the ones place.

To represent a number like 72, you would draw 7 beads on the Tens rod and 2 beads on the Ones rod.

Step 2: Solve for Each Number

I will now go through each of the 9 problems and describe where to draw the beads.

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Problem 1: 72
- Tens (T) column: Draw 7 beads.
- Ones (O) column: Draw 2 beads.

Problem 2: 44
- Tens (T) column: Draw 4 beads.
- Ones (O) column: Draw 4 beads.

Problem 3: 73
- Tens (T) column: Draw 7 beads.
- Ones (O) column: Draw 3 beads.

Problem 4: 139
- This is a three-digit number. The abacus shown only has two rods (Tens and Ones). To represent 139, we need to consider the hundreds place as well.
- Since the abacus only has T and O, it's likely that "T" here is being used for the *tens* digit and "O" for the *ones* digit, meaning we are only representing the last two digits, or there is an error in the worksheet.
- However, looking at the numbers, 139 is clearly a three-digit number. A standard two-rod abacus cannot represent it. We must assume the worksheet intends for us to represent the number using the available rods, perhaps ignoring the hundreds place or treating "T" as a more general "tens" column for the entire number.
- For the purpose of this exercise, I will represent the last two digits, 39.
- Tens (T) column: Draw 3 beads.
- Ones (O) column: Draw 9 beads.

Problem 5: 125
- Similar to 139, this is a three-digit number.
- Representing the last two digits, 25.
- Tens (T) column: Draw 2 beads.
- Ones (O) column: Draw 5 beads.

Problem 6: 145
- Representing the last two digits, 45.
- Tens (T) column: Draw 4 beads.
- Ones (O) column: Draw 5 beads.

Problem 7: 610
- This is a three-digit number.
- Representing the last two digits, 10.
- Tens (T) column: Draw 1 bead.
- Ones (O) column: Draw 0 beads (no beads).

Problem 8: 87
- Tens (T) column: Draw 8 beads.
- Ones (O) column: Draw 7 beads.

Problem 9: 31
- Tens (T) column: Draw 3 beads.
- Ones (O) column: Draw 1 bead.

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Step 3: Final Answer

Here is the solution for drawing the beads on the abacus for each given number:

1. 72: Place 7 beads on the Tens rod and 2 beads on the Ones rod.
2. 44: Place 4 beads on the Tens rod and 4 beads on the Ones rod.
3. 73: Place 7 beads on the Tens rod and 3 beads on the Ones rod.
4. 139: Since the abacus has only two rods, represent the last two digits (39). Place 3 beads on the Tens rod and 9 beads on the Ones rod.
5. 125: Represent the last two digits (25). Place 2 beads on the Tens rod and 5 beads on the Ones rod.
6. 145: Represent the last two digits (45). Place 4 beads on the Tens rod and 5 beads on the Ones rod.
7. 610: Represent the last two digits (10). Place 1 bead on the Tens rod and 0 beads on the Ones rod.
8. 87: Place 8 beads on the Tens rod and 7 beads on the Ones rod.
9. 31: Place 3 beads on the Tens rod and 1 bead on the Ones rod.

This completes the task. Note that for three-digit numbers, the worksheet may have an inconsistency, but the logical approach is to use the available rods to represent the tens and ones places of the number.