Page 91 - Arithmetic Std 2

FOR ONLINE USE ONLY
DO NOT DUPLICATE

Subtracting numbers horizontally

Activity
FOR ONLINE USE ONLY
Subtract 243 – 127 using the Abacus.

Hundreds Tens Ones

1 1 6

Steps
1. Subtracting 127 from 243: Put 3 beads on the line

of ones, 4 beads on the line of tens and 2 beads on
the line of hundreds.

2. Subtract ones: 7 beads can not be subtracted from

3 beads. Take 1 bead from the line of tens, which is
equal to 10 ones. Add 10 beads on the line of ones.

The ones become 10 + 3 = 13. Remove 7 beads from
the line of ones. 13 – 7 = 6. Write 6 in the ones

place.
3. Subtract tens: Remove 2 beads from the line of tens.

3 – 2 = 1. Write 1 in the tens place.

4. Subtract hundreds: Remove 1 bead from the line of
hundreds. 2 – 1 = 1. Write 1 in the hundreds place.

Therefore, 243 – 127 = 116.

84

PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
ARITHMETICS PUPIL'S STD 2.indd 84 03/08/2019 13:06