Even and odd
Is 14 even or odd?
Even
Show 8 as pairs. How many pairs?
4 pairs
. . . .
. . . .
How many tens and ones are in 34?
3 tens and 4 ones
Write 23 as tens plus ones
20 + 3
What comes next: 2, 4, 6, __?
8
Is 27 even or odd?
Odd
Which shows 10 as pairs: 5 pairs or 4 pairs?
5 pairs
What number is 5 tens and 2 ones?
52
What number is 40 + 7?
47
What comes next: 10, 20, 30, __?
40
Which number is even: 35 or 42?
42
A student draws 3 pairs of dots. What even number do the dots show?
6
In 76, what is the value of the 7?
70
Write 315 in expanded form.
300 + 10 + 5
What comes next: 100, 200, 300, __?
400
How can you tell 18 is even by making pairs?
It makes 9 pairs with none left over.
What even number is 2 more than 12?
14
How many tens and ones are in 109?
0 tens and 9 ones
What number is “six hundreds, two tens, and nine ones”?
629
What comes next: 500, 600, 700, __?
800
A number has 6 tens and 3 ones. Is it even or odd? Explain.
63 is odd because the ones digit is 3; one is left unpaired.
Explain two ways to represent 16
10 + 6
Sixteen
1 ten and 6 ones
. . . . . . . .
. . . . . . . .
A number has 8 tens, 0 hundreds, and 6 ones. What is it?
86
Name two different ways to write 84
80 + 4; 8 tens and 4 ones; eighty-four.
A pattern starts at 980 and adds 5 each time. What are the next three numbers?
985,990,995,1000,1005