Page 83 - Arithmetic Std 2

FOR ONLINE USE ONLY
DO NOT DUPLICATE

Subtraction by using an Abacus

FOR ONLINE USE ONLY
Hundreds Tens Ones

1 2 4

Therefore, 247 – 123 = 124.

Steps

1. Put 7 beads on the line of ones, 4 beads on the line
of tens and 2 beads on the line of hundreds.

2. Subtract ones. Remove 3 beads from the line of ones.

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

4. Subtract hundreds. Remove 1 bead from the line of

hundreds.

Based on the number of beads the answer is 124.

Note: The crossed beads are the one which have been
removed.

76

PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
ARITHMETICS PUPIL'S STD 2.indd 76 03/08/2019 13:06