Math STAAR Review

Review for STAAR math

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Place Value

Place Value

The value of where a digit is in the number.

Example: In 352, the 5 is in the "tens" place, so its place value is 10

Example: In 17,591, the 7 is in the "thousands" place.

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Multiple Choice

What is the place value of the 8 in 872,549

• ten thousands

• hundreds

• thousands

• hundred thousands

Multiple Choice

The 4 is in the ________ place in the number 450,322.

• ones

• thousands

• ten thousands

• hundred thousands

Multiple Choice

What is 3,456 in expanded form?

• 300+400+56

• 3000+400+56

• 3000+450+6

• 3000+400+50+6

Multiple Choice

What is 6000+700+20+1 in standard form?

• six thousand seven hundred twenty-one

• 6,700,21

• 6,721

• 6000700201

Multiple Choice

What is the correct way to write 605 in expanded form?

• 600+5

• 600+05

• six hundred 5

• six hundred five

Multiple Choice

What is eight thousand seven hundred sixty-eight in expanded form?

• 8,768

• 8000+700+60+8

• eight hundred sixty-eight

• 800+700+60+8

Multiple Choice

What is nine thousand five hundred ninety-eight in expanded notation?

• 9,598

• 9,000+500+90+8

• nine thousand five hundred ninety-eight

• (9x1,000)+(5x100)+(9x10)+(8x1)

Rounding numbers

What is "Rounding"?

Rounding means making a number simpler but keeping its value close to what it was.

The result is less accurate, but easier to use.

Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80. But 76 goes up to 80.

Rounding numbers

How to Round NumbersDecide which is the last digit to keep Leave it the same if the next digit is less than 5 (this is called rounding down) But increase it by 1 if the next digit is 5 or more (this is called rounding up)

Example: Round 74 to the nearest 10. We want to keep the "7" (it is in the 10s position) The next digit is "4" which is less than 5, so no change is needed to "7"

Answer: 70

(74 gets "rounded down")

Example: Round 86 to the nearest 10We want to keep the "8" The next digit is "6" which is 5 or more, so increase the "8" by 1 to "9"

Answer: 90

(86 gets "rounded up")

Multiple Choice

Round the number 67 to the nearest ten.

• 60

• 68

• 70

• 66

Multiple Choice

Round the number 781 to the nearest ten.

• 782

• 700

• 800

• 881

Multiple Choice

Round the number 81 to the nearest ten.

• 82

• 90

• 80

• 81

Multiple Choice

Round the number 566 to the nearest ten.

• 666

• 600

• 500

• 560

Money Problems

Multiple Choice

Jim has 2 quarters, 3 dimes, and 4 pennies. What could he buy?

• Gum- 57 cents

• Soda- 82 cents

• both of them

• Neither One of Them

Multiple Choice

Eleno has 83 cents. Which coin amount equals the amount he has?

• 2 quarters, 2 dimes, and 3 pennies

• 3 quarters, 1 nickel, and 3 dimes

• 8 dimes and 1 nickel

• 7 dimes and 1 nickel and 3 pennies

Multiple Choice

Eleno has 83 cents. Which coin amount equals the amount he has?

• 2 quarters, 2 dimes, and 3 pennies

• 3 quarters, 1 nickel, and 3 dimes

• 8 dimes and 1 nickel

• 7 dimes and 1 nickel and 3 pennies

Multiple Choice

Identify this coin.

• penny

• quarter

• dime

• nickel

Multiple Choice

Identify this coin.

• penny

• quarter

• dime

• nickel

Multiple Choice

Identify this coin.

• penny

• quarter

• dime

• nickel

Multiple Choice

Identify this coin.

• penny

• quarter

• dime

• nickel

Comparing numbers

It is good to know if one number is the same as, or smaller than, or bigger than, another number:

Less Than and Greater Than

The "less than" sign and the "greater than" sign look like a "V" on its side, don't they?

To remember which way around the "<" and ">" signs go, just remember:

BIG > small small < BIG

The "small" end always points to the smaller number, like this:

Greater Than Symbol: BIG > small

Multiple Choice

6,988 _______________ 6,899

• >

• <

• =

Multiple Choice

2,321 ______2,312

• >

• <

• =

Multiple Choice

3,821 _____ 3,821

• >

• <

• =

Multiple Choice

1002 ______1020

• >

• <

• =