Math, 10-20-21

Use "Mental Math" to multiply:

2,000 x 7 =

(Hint! Float those zeros and return them to your answer.)

• 14

• 1,400

• 14,000

• 1,400,000

Tags

CCSS.5.NBT.B.5

Use "Mental Math" to multiply:

10,000 x 3 =

(Hint! Float those zeros and return them to your answer.)

• 3

• 300

• 3,000

• 30,000

Tags

CCSS.4.NBT.B.5

Use "Mental Math" to multiply:

1,100 x 5 =

(Hint! Float those zeros and return them to your answer.)

• 55

• 5,500

• 55,000

• 505

Tags

CCSS.4.NBT.B.5

What is the BASIC MATH FACT in this problem?

3 x 8,000 = 24,000

• 3 + 8 = 24

• 24 - 8 = 3

• 3 x 8 = 24

• 24 x 8 = 3

Tags

CCSS.5.NBT.B.5

Give an ESTIMATION for your answer.

DO NO GIVE AN EXACT ANSWER!

2 , 1 9 9 x 4 =

(Hint! Round the large number, float those zeros, return those zeros!)

• 8,796

• 12,000

• 8,050

• 8,000

Tags

CCSS.4.NBT.B.5

Give an ESTIMATION for your answer.

DO NO GIVE AN EXACT ANSWER!

3,657,301 x 5 =

(Hint! Round the large number, float those zeros, return those zeros!)

• 20,000

• 20,000,000

• 21,000,000

• 15,000,000

Tags

CCSS.4.NBT.B.5

The local Carson Hall seats 689 people for concerts.

There were 8 concerts in June, and each one was sold out.

ABOUT how many tickets were sold in June?

• 5,512

• 5,500

• 5,600

• 4,800

Tags

CCSS.4.NBT.B.5

What multiplication problem is shown here?

• 4 x 20 = 80

• 3 x 24 = 72

• 23 x 4 = 92

• 23 x 23 = 529

Tags

CCSS.4.NBT.B.5

What multiplication problem is displayed in this drawing?

• 34 x 3 = 102

• 3 x 33 = 99

• 30 x 3 = 90

• 32 x 3 = 66

Tags

CCSS.4.NBT.B.5

What multiplication sentence does this drawing show?

• 15 x 4 = 30

• 4 x 10 = 40

• 15 x 3 = 45

• 15 x 4 = 60

Tags

CCSS.2.OA.C.4