Problem solving

Problem solving

1.9

Problem solving

Problem 1

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

How many numbers can be formed?

METHOD:

Draw a table
Write the digit of tens
Then, write the digit of ones

Number begins with 6

64

61

Number begins with 4

46

41

Number begins with 1

14

16

So, there are 6 numbers altogether that can be formed by using card 4, 6 and 1.

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.

Problem solving

1.9

Problem solving

Problem 1

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

How many numbers can be formed?

METHOD:

Draw a table
Write the digit of tens
Then, write the digit of ones

Number begins with 6

64

61

Number begins with 4

46

41

Number begins with 1

14

16

So, there are 6 numbers altogether that can be formed by using card 4, 6 and 1.

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.