1. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Fred had this packet of lollies.
Gina had these individual lollies.
Did they have the same number of lollies?
INSTRUCTIONS FOR USING THESE PROBLEMS:
These problems are differentiated into 3 levels. Change the numbers to suit the levels of understanding in your class. Add further levels if necessary.
For whole class whole lesson problem solving, copy problems A and B onto their own slides. Change the numbers in problems A and B on the slide with all 3 problems, to allow students to select the problem they are ready to solve independently at the end of the lesson. Students then create their own problem.
For embedded problem solving, keep all problems on the same slide, allow students to select the problem they are ready to solve.
Fred had this packet of marbles.
Gina had these individual marbles.
Did they have the same number of marbles?
Fred had this packet of pencils.
Gina had these individual pencils.
Did they have the same number of pencils? 

2. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Fred had this packet of lollies.
Cassie had these individual lollies.
Did they have the same number of lollies?
Fred had this packet of marbles.
Cassie had these individual marbles.
Did they have the same number of marbles?
Fred had this packet of pencils.
Cassie had the same number of individual pencils.
How mant individual pencils did Cassie have? 

3. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Millie and Rose made a teen number with their fingers.
Millie was showing 10 fingers and Rose was showing 4 fingers.
How many fingers altogether?
Millie and Rose made a teen number with their fingers.
Millie was showing 10 fingers and Rose was showing 6 fingers.
How many fingers altogether?
Millie and Rose made a teen number with their fingers.
Millie was showing 10 fingers and Rose was showing 7 fingers.
How many fingers altogether?

4. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Millie and Rose were showing 16 fingers.
Millie was showing 10 fingers.
How many fingers was Rose showing?
Millie and Rose were showing 17 fingers.
Millie was showing 10 fingers.
How many fingers was Rose showing?
Millie and Rose were showing 18 fingers.
Millie was showing 10 fingers.
How many fingers was Rose showing?

5. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Jon collected four marbles.
How many more marbles does he need to have fourteen marbles?
How do you know?
Jon collected five marbles.
How many more marbles does he need to have fifteen marbles?
How do you know?
Jon collected six marbles.
How many more marbles does he need to have sixteen marbles?
How do you know?

6. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Gina recorded a teen number with 2 digits.
One of the digits was 4.
What was the other digit?
Gina recorded a teen number with 2 digits.
One of the digits was 5.
What was the other digit?
Gina recorded a teen number with 2 digits.
One of the digits was 7.
What was the other digit?

7. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Matt found these shells at the beach.
How many shells does Matt have?
How do you know?
Matt found these shells at the beach.
How many shells does Matt have?
How do you know?
Matt found these shells at the beach.
How many shells does Matt have?
How do you know?

8. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Fred had this packet of lollies.
Gina had these individual lollies.
How many lollies altogether?
Fred had this packet of marbles.
Gina had these individual marbles.
How many marbles altogether?  
Fred had this packet of pencils.
Gina had 4 individual pencils.
How many pencils altogether?  

10. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
Jan has 10 toy cars. Ella has 4 more.
How many toy cars does Ella have?
How do you know?
Jan has 10 toy cars. Ella has 5 more.
How many toy cars does Ella have?
How do you know?
Jan has 10 toy cars. Ella has 6 more.
How many toy cars does Ella have?
How do you know?

11. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
In a basket ball game between the Blues and the Reds, There were 14 goals scored.
The Blues scored 10 goals.
How many did the reds score? How do you know?
In a basket ball game between the Blues and the Reds, There were 19 goals scored.
The Blues scored 6 goals.
How many did the reds score? How do you know?

12. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
There are 12 seats on the bus.
4 children got on the bus.
How many empty seats are there on the bus?
There are 14 seats on the bus.
10 children got on the bus.
How many empty seats are there on the bus?
There are 18 seats on the bus.
10 children got on the bus.
How many empty seats are there on the bus?

13. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
This room has 14 chairs.
4 children sit on the chairs.
How many chairs have no one sitting on them?
This room has 15 chairs.
5 children sit on the chairs.
How many chairs have no one sitting on them?
This room has 16 chairs.
6 children sit on the chairs.
How many chairs have no one sitting on them?

14. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
This room has 10 chairs.
14 children want to sit down.
How many more chairs will they need?
This room has 10 chairs.
16 children want to sit down.
How many more chairs will they need?
This room has 10 chairs.
15 children want to sit down.
How many more chairs will they need?

15. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
There were 14 children on the bus.
4 children got off.
How many children on the bus?
There were 15 children on the bus.
5 children got off.
How many children on the bus?
There were 16 children on the bus.
6 children got off.
How many children on the bus?

16. Place Value of Teen Numbers
Problem Solving
Place Value of Teen Numbers
information you need to find it out.
that you could use to find it out.
to find it out
that you have found out.
2 apple trees had 13 apples altogether.
One tree had 6 apples.
How many apples were on the other tree?
2 apple trees had 14 apples altogether.
One tree had 4 apples.
How many apples were on the other tree?
2 apple trees had 17 apples altogether.
One tree had 10 apples.
How many apples were on the other tree?