Lesson 12: Multiplication with Carry Over (12 × 4)

Advanced Level

Instructions

Let's multiply 12 × 4 using repeated addition across two columns.
Set 12: Tens (1 blue bead = 10), ones (2 blue beads = 2).
Add 12 four times: First (12), second (24), third (36), fourth (48).
Use carrying between columns as needed during addition.
The value should be 48!

T

100B

10B

B

100M

10M

M

100K

10K

K

100

10

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

5

1

1

1

1

Value: 0

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