Problem 1

Asma wants to form two-digit numbers using the number cards as follows.

How many numbers can be formed?

METHOD:

1. Draw a table
2. Write the digit of tens
3. Then, write the digit of ones

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.