Chapter 2 review

2,4,6,8 are

• even numbers

• odd numbers

5+5+5=15 this is an example of

• even

• array

• repeated addition

1,3,5,7, are

• even numbers

• odd numbers

When you count by equal groups, you

• subtract

• pattern

• minus

• skip count

Find the missing numbers: 12,14,16,____ _____

• 20,22

• 18,20

• 10,11

Which shows an even pattern

• 1,3,5,7

• 5,7,9,11

• 8,10,12,14

Skip count by 2's to finish the pattern 80,82, ____,____

• 86,88

• 84,86

• 79,80

Which is an example of an array

• X X

  X X

  X X

• XXX

  XX

• XXXXX

  X

_____ groups of _____

XXX

XXX

• 3 groups of 3

• 2 groups of 3

• 4 groups 4

Describe this array using a number sentence

XXXX

XXXX

• 3+3=6

• 2+2=4

• 4+4=8

• 5+5=10