Problem 1
Asma wants to form two-digit numbers using the number cards as follows.
How many numbers can be formed?
METHOD:
Problem 2
Ali has 45 marbles.
Ali's marbles are 5 more than Kumar's mables.
How many Kumar's marbles?
Kumar's marbles are less 5 than Ali's marbles.
So, students need to count from 45 in descending order.
It is found out that Kumar's marbles are 40.
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