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Abacus Number Detective

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Abacus Number Detective

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About this activity

Read numbers from abacus beads

Created by

Hidden Author
Hidden Author
Lebanon

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Abacus Number Detective
 

Abacus Number DetectiveOnline version

Read numbers from abacus beads

by Hidden Author
1

I have 3 beads in thousands, 2 beads in hundreds, 4 beads in tens, and 5 beads in ones. What number am I?

Hints

Ignore commas when counting the beads.

Then read hundreds, tens, and ones in order.

Identify the thousands column first.

2

I have 2 beads in thousands, 1 bead in hundreds, 3 beads in tens, and 7 beads in ones.

Hints

Combine the digits to form the four-digit number.

Next, read hundreds, tens, then ones.

Start with the thousands column.

3

I have 1 bead in thousands, 5 beads in hundreds, 0 beads in tens, and 8 beads in ones.

Hints

Finish with ones.

Tens column has zero beads.

Thousands first, then hundreds.

4

I have 4 beads in thousands, 2 beads in hundreds, 0 beads in tens, and 6 beads in ones.

Hints

Tens has zero, add ones.

Then two in hundreds.

Four in the thousands column.

5

This abacus column is worth 1,000 for each bead. Which column am I?

Hints

Commonly labeled first from the left.

Think about which column has high value per bead.

6

Each bead in my column is worth 100. Which column am I?

Hints

All beads here count as hundreds.

A mid-value column.

7

Each bead in my column is worth 10. Which column am I?

Hints

Each bead multiplies by ten.

Second from the left.

8

Each bead in my column is worth 1. Which column am I?

Hints

Beads here are units.

Rightmost column.

9

I have 2 thousands beads, 3 hundreds beads, 0 tens beads, and 4 ones beads.

Hints

Tens place is zero, ones is four.

Then three in hundreds.

Two in the thousands place.

10

I have 1 thousands bead, 5 hundreds beads, 2 tens beads, and no ones beads.

Hints

Tens second to last, ones are zero.

Thousands first, then hundreds.

 
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