Fives and tens are related
Today I can say how groups of five and ten are related.
A Look back3 min
- 1.
Count on in tens: 40, 50,
- 2.
Is 14 odd or even? Circle one.
oddeven - 3.
2 + 2 + 2 =
B Watch me, then you4 min
Priya has 10 pegs. She splits them into two equal piles. How many are in each pile?
The whole bar is 10 pegs.
Two equal parts make 5 and 5.
5 is half of 10, so 10 is double 5.
- 1.
Double 5 is
C Your turn5 min
- 1.
Half of 10 is
- 2.
Half of 20 is
- 3.
Half of 30 is
- 4.
Half of 40 is
Say it out loud: Which of your answers are only in the fives count? Which are in both counts?
D Spot the mistake3 min
- 1.
Is 15 in the tens count? Circle one.
YesNo
E Think deeper4 min
- 1.
Find every number from 1 to 60 in both the fives and tens counts.