Divide&by&One+ Estimate&Quotients&

Chapter 4

Name: _______________________________________ Date: __________________

Divide by One--

Estimate Quotients

Practice to review...I can use basic facts and multiples to estimate quotients!

I can use multiples of 6 to estimate the quotient of 1,759 ? 6.

Digit Numbers HW 4.1

THINK

There are 17 hundreds in the number 1,759. Count by hundreds.

What multiple of 6 is close to 1,759?

Estimate.

1,759 ? 6 is about

because ? 6 =

Practice to remember...

Estimate.

Write the fact you used.

1.

33,203 ? 4 is about

2.

11,955 ? 3 is about

because ? 4 =

because ? 3 =

3.

803,486 ? 9

fact: ___________________

4.

2,479 ? 5

estimate:

_______________

fact: ___________________

estimate:

_ ______________

5.

649 ? 8

fact: ___________________

6.

361,912 ? 7

estimate:

_______________

fact: ___________________

estimate:

_ ______________

Use basic facts and mental math to answer the question.

7.

Seth estimated the quotient of 17,475 ? 6 as 3,000. What numbers did Seth use for the dividend and

divisor to get this quotient? Is Seth's estimate less than or greater than the actual quotient? Tell how you found your answer.

? Lincoln Public Schools, 2014

5th Grade Math

Chapter 4

Name: _______________________________________ Date: __________________

Divide by One--

Remembering

Practice for fluency...

Digit Numbers RE 4.1

8.

Malik has 1 ten--dollar bill, 1 five--dollar bill, 1

one--dollar bill, 3 quarters, 3 dimes, and 2

pennies.

How much money does Malik have?

9.

Which is the greatest amount?

a.

2 twenty--dollar bills and 3 five--dollar bills

a.

$3.77

b. $16.82

b. 1 twenty--dollar bill and 2 ten--dollar bills

c.

$16.97

d. $17.07

c.

1 fifty--dollar bill and 3 five--dollar bills

d. 3 twenty--dollar bills

Find each product.

Estimate to check your answers.

10. 44 ? 617

____________________

11. 983 ? 48

____________________

12. 82 ? 43

____________________

13. 38 ? 25

____________________

Answer each question.

Explain your thinking.

14. Alan and three friends split the cost of a gift. Write an expression that

shows how much each person contributed for the gift. Then use the expression to determine how much Alan contributed if the gift cost $48.

15. Of the students at Clemente Elementary School, 0.12 are in the drama

program, and 0.2 take art classes. Do more students take art or drama? Show how you know.

? Lincoln Public Schools, 2014

5th Grade Math

Chapter 5

Name: _______________________________________ Date: __________________

Divide by Two--

Divide by Multiples of 10, 100, and 1,000

Digit Numbers HW 5.1

Practice to review...I can use basic facts and mental math to divide!

Divide (12 thousands)

into 3 equal groups.

How

I can find the quotient of 12,000 ? 3 =

I know that 12 ? 3 =

many in each group?

I know that 12,000 is equivalent to 12 thousands,

12 thousands ? 3 = thousands

so 12,000 ? 3 = 12 thousands ? 3 I can also find the quotient of 2,000 ? 400 =

12,000 ? 3 =

Divide (20 hundreds) into groups of (4 hundreds).

How many groups?

I know that 400 is equivalent to 4 hundreds

20 hundreds ? 4 hundreds =

and 2,000 is equivalent to 20 hundreds

Practice to remember...

Use basic facts and patterns to find each quotient.

2,000 ? 400 =

1.

800 ? 4

2.

1,800 ? 6

3.

2,400 ? 30

4.

3,500 ? 70

_________

_________

_ ________

_________

5.

3,000 ? 500

6.

54,000 ? 900

7.

1,800 ? 90

8.

4,200 ? 600

_________

_________

Compare.

Choose >, ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download