Odd or Even
Is this odd or even? How do you know?
0 0 0 0 0 0 0
0 0 0 0 0 0
What two numbers from the list below would round to 90?
78, 85, 82, 92, 95
85 and 92
If a circle is cut into three equal pieces, what is that called?
three thirds
Which statement is true?
53 + 17 = 80 - 10
69 - 15 = 54 + 18
44 + 18 = 62 - 10
53 + 17 = 80 - 10
580 - 452
128
Draw an image to prove that this number is odd or even.
17
Drawing should show 8 groups of 2 with one left out.
If rounding to the nearest ten, what would 77 round to?
80
If a rectangle is cut into four equal pieces, what is that called?
four fourths
48 - 14 = 20 + ____
14
623 - 199
424
When you add together two even numbers, the answer is always what? Show 3 examples to prove your answer.
Even
4+4 = 8
2+2 = 4
8+8 = 16
If rounding to the nearest ten, what would 55 round to?
60
Half, two halves
Make the equation true, balance the equation:
______ - 35 = 19 + 8
62
185 + 272 =
457
0 0 0 0 0 0
0 0 0 0 0 0
Even, six groups of two with nothing left over.
If rounding to the nearest hundred, what would 192 round to?
200
Draw one way you could partition a rectangle into thirds.
answers will vary
Make the equation true, balance the equation:
58 + _____ = 88 - 22
8
888 - 394 =
494
15 is odd because it is a doubles plus 1.
15 is even because it is a doubles plus 1.
15 is odd because it is a doubles.
15 is even because it is not a doubles.
15 is odd because it is a doubles plus 1, meaning one is left over.
If rounding to the nearest ten, what would 64 round to?
60
Draw one way you can partition a square into four equal pieces.
Make the statement true, balance the equation:
72 + 18 = _____ - 20
110
525 + 283=
808