5th math topic 3 & 4

34 - 17 =

• 51

• 68

• 23

• 17

28 + 45 =

• 613

• 73

• 603

• 1040

What equation shows the commutative property?

• 0 x 375,903 = 0

• 5 x (11 x 4) = (5 x 11) x 4 =

• 42 x 1 = 42

• 53 x 6 = 6 x 53

Which equations shows the associative properties

• 0 x 367,098 = 0

• 5 x (11 x 4) = (5 x 11) x 4

• 14 x 5 = 5 x 14

• 42 x 1 = 42

This property tells us that when we change the order of numbers when we are adding, the answer does not change.  

• Commutative Addition
• Commutative Multiplication
• Associative Addition
• Associative Multiplication

Tags

CCSS.1.OA.B.3

___ + 5 = 5 + 9

• 9
• 19
• 14
• -9

Tags

CCSS.1.OA.B.3

What does the number in the exponent mean? 10⁴

• 10 x 4= 40

• 10 x 10 x 10 x 10 = 40,000

• 10 + 10 + 10 + 10= 40

• just count the zeros, 4 zeros = 10,000 x 4

Another way of writing 4000 is...

• 4 + 1000

• 4 x 1000

• 4 x 100

• 4 x 10³

48 x 10 =

• 48 x 10²

• 480

• 4800

• 48 x 10¹

2 x 10³

• 20

• 200

• 2000

• 20000