J's answer to HH's Primary 5 Maths Whole Numbers Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
98 - 97 = 1
96 - 95 = 1
94 - 93 = 1
...
6 - 5 = 1
4 - 3 = 1
2 - 1 = 1
There are 98 numbers here. 49 pairs are formed. Each pair gives a result of 1.
49 × 1 = 49
Add that to the 99 at the front,
49 + 99 = 148 (answer)
96 - 95 = 1
94 - 93 = 1
...
6 - 5 = 1
4 - 3 = 1
2 - 1 = 1
There are 98 numbers here. 49 pairs are formed. Each pair gives a result of 1.
49 × 1 = 49
Add that to the 99 at the front,
49 + 99 = 148 (answer)
Date Posted:
2 years ago
360 Tutoring Program