Addition
58 +24 =
82
96-78 =
18
Round to the tens: 47
50
I am a quadrilateral with 4 equal length sides and 4 square corners.
Square
7
39
343
655
901
All Odd
360 + 492 =
852
144 - 59 =
85
Round to the hundreds: 739
700
I'm a polygon with 3 sides.
Triangle
8
212
678
900
805
Even
Even
Even
Even
Odd
678 + 678 =
1,356
803 - 494 =
309
Round to the tens: 525
530
I'm a 5 sided polygon.
Pentagon
740
899
651
733
600
even
odd
odd
odd
even
801 + 99 =
900
715 - 506 =
209
Round to hundreds: 593
600
I'm a 6-sided shape.
Hexagon
777
444
412
945
690
Odd
Even
Even
Odd
Even
2,428 + 7,790
10,218
800 - 652 =
148
Round to the tens: 800
800
I'm a 8-sided shape.
Octogon
940
888
762
444
200
All Even