Page 73 - Arithmetic
P. 73
FOR ONLINE USE ONLY
DO NOT DUPLICATE
Chapter Twelve
FOR ONLINE USE ONLY
Adding numbers to obtain sums
not exceeding 99
Numbers can be added horizontally or vertically.
Adding numbers horizontally without regrouping
Example 1 Example 2
53 + 36 = 22 + 45 =
Steps Steps
53 + 36 = 89 22 + 45 = 67
Steps Steps
1. Add the ones, 1. Add the ones,
3 + 6 = 9 2 + 5 = 7
Write the answer Write the answer
in the ones place in the ones place
2. Add the tens, 2. Add the tens,
5 + 3 = 8 2 + 4 = 6
Write the answer Write the answer
in the tens place in the tens place
53 + 36 = 89 22 + 45 = 67
66
PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Mathematics STD 1.indd 66 03/08/2019 11:17
