Multiple Multiples
3,6,9,12,15...........count by 3's forever!
(Use the rainbow bookend strategy.)
1,2,3,6,7,14,21,42
27 x 4
108
24 ÷ 8
3
T or F: A shape's perimeter will be smaller than its area.
false - show proof
Is 56 a multiple of 9?
No.
9,18,27,36,45,54,63
6 groups of 9 is 54
7 groups of 9 is 63
List 5 prime numbers between 1 and 50.
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47
456 x 8
3,648
93÷4
23 R1
T or F: A shape can have the same perimeter and area.
true - proof
True or False,
an odd number can never make an even number.
(Provide an example to prove.)
False.
2 groups of 3 is 6.
Two odd numbers together make an even number.
True or False,
an odd number can never have an even factor.
(Show an example as proof.)
True
67 x 81
5,427
329 ÷ 7
47
If you cut a shape and rearrange it, its area will change but its perimeter will stay the same.
False - proof
Is 81 a multiple of 3?
Yes,
9x9 is 81 and 3 is a factor of 9.
10 x 3 = 30
10 x 3 = 30
7 x 3 = 21
(Prove it.)
Yes.
30 x 3 = 90
8 x 3 = 24
334 x 55
18,370
3,215 ÷ 4
803 R4
T or F: All shapes that have the same area, will also have the same perimeter.
false - proof
What is a multiple of both 3 and 7 that is not 21?
21, 42, 63, 84 . . . any multiple of 21
What is the greatest common factor of 24 and 72?
598 x 283
169,234
473 ÷ 68
6 R65
Finding the area of a 3-D shape is measuring its _____________ ___________.
surface area