Let’s Practice our standards from Benchmark 2

Objective: I can use various strategies in math to problem solve.

math objectives•G5.2M.C2.PO2: Probability

•G5.1M.C1.P12: Convert fractions, percents, and decimals

•G5.1M.C2.PO1B: add and subtract fractions with unlike denominators.

•G5.1M.C2.PO1A: add and subtract decimals

•G5.1M.C3.PO1: estimating

•G5.3M.C1.PO1A: Numerical sequence

•G5.3M.C3.PO1: 2 step equations

Essential Questions

• What is probability? How do I express outcomes?

•What strategies do I use to convert equivalent fractions, decimals, and percents?

•How do I use clues to create a valid estimate?

•How do I add/subtract fractions with unlike denominators?

•How do I identify a rule of a numerical sequence?

•What is a 2-step equation? How do I create and solve a 2-step equation?

Set- Think...

•Think back to this quarter... what math standard did you understand the most? What strategies did you use when solving problems?

•Share with a face partner.

Adding/subtracting fractions

•Solve. Make sure your answer is in lowest terms.

•2/3 - 5/9

A. 33/27

B. 3/27

C. 1/9

Your Turn...

•Solve. Make sure your answer is in lowest terms.

•6 2/9 - 2 3/9

A. 4 8/9

B. 3 8/9

C. 3 6/9

Your Turn...

•Solve. Make sure your answer is in lowest terms.

• 6 5/8 + 1 1/4

A. 7 7/8

B. 7 3/4

C. 5 1/2

•2) Which of the following is true?

A. 4/5 = 45%

B. 1/4 = 25%

C. 1/8 = 0.18

D. 3/8 = 38/100

Solve equivalent fractions, %, percents

Solve equivalent fractions, %, percents

•3) Which of the following is not true?

A. 0.06 = 60%

B. 0.7 = 70%

C. 1/5 = 20%

D. 25% = 100/400

Compare fractions, decimals, percents

•Which is correctly ordered from least to greatest:

a.1 3/4, 1.6, 150%, 9/10

b. 1 3/4, 150%, 9/10, 1.6

c. 9/10, 150%, 1.6, 1 3/4

Let’s try!

•Which is correctly ordered from greatest to least:

a.1 1/2, 270%, 3.625, 2 1/6

b. 3.62, 270%, 2 1/6, 1 1/2

c. 270%, 2 1/6, 3.62, 1 1/2

Let’s try!

•Which is correctly ordered from least to greatest:

a.1.25, 1/2, 40%, 1/6

b. 1/6, 40%, 1/2, 1.25

c. 1/2, 40%, 1.25, 1/6

Add/Subtract decimals

•2) Solve 67.4 - 0.043

•a) 67.83

•b) 67.357

•c) 6.783

•d) 6.7357

Solve

•3) Solve 56 + 0.78

•a) 56.78

•b) 1.34

•c) 5.678

•d) 55.22

Solve•9) Marla bought a book for $22.50.

The tax on the book was $1.13. She gave the cashier $25. How much will Marla get back in change?

•a) $48.63

•b) $2.75

•c) $1.37

•d) $0.63

Estimate• Jan went shopping for wood for

her new shed. She needed 12 2/9 feet of two-by-fours, 13 6/8 of four-by-fours, and 15 3/5 of trim. About how much wood did Jan need.

•A. 42

•B. 43

•C. 41

•D. 44

Estimate•Joe went to the store with his

allowance money. He bought a soda for .34, a candy bar for 1.74, and a pack of gum for 2.01. About how much did Joe spend at the store?

•A. 2.80

•B. 3.00

•C. 2.90

•D. 4.00

Estimate

•Round 7 5/10 to the nearest whole

•A. 8

•B. 6

•C. 7

•D. 5

Probability•2) A box contains 9 red marbles,

12 blue marbles, 13 green marbles, and 6 white marbles. What is the probability of taking out a red marble?

•a) 9 out of 30

•b) 12 out of 41

•c) 13/40

•d) 9/40

Solve

•5) How likely would it be to land on a “B”?

•a) Very likely

•b) Unlikely

•c) Certain

•d) Impossible

AB

BA

B

B

Probability

•Which is MOST likely to happen

•a) to pick a multiple of 5

•b) to choose an even number

•c) to choose a number in the 30’s

•d) to choose a letter.

13 23 30 18 22 25

Numerical sequence

•3) Which two numbers would complete the following sequence?

• 6, 5 1/4, 4 1/2, 3 3/4, ___ ,___

•

• A) 3 1/2, 3 1/4

• B) 3, 2 1/2

• C) 3, 2 1/4

• D) 3 1/4, 2 1/2

•

Solve•4) What are the missing numbers

in the following sequence?

• 67, _____, 57, 52, 47, _____, 25

• A. 65, 42

• B. 62, 45

• C. 62, 42

• D. 65, 42

Closure•What strategies will you remember

to use when you are problem solving?

•Share with your face partner