4th Math DCA 1 Review: 4.2A, 4.2B, 4.2C, 4.2E, 4.2F, 4.2H, 4.4A, 4.4G, 4.5A

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numbers in the numerator and denominator are different. For example, 1/2 and 2/4 are equivalent fractions.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

How do you find out how many more trees Isaiah needs to plant to reach 2,000?

Back

To find out how many more trees Isaiah needs to plant, first add the number of trees he has already planted: 521 + 387 + 438 = 1,346. Then subtract this total from 2,000: 2,000 - 1,346 = 654.

Tags

CCSS.4.OA.A.3

Front

If Mrs. Zapata paid $8.17 for three packages, how do you find the cost of the third package?

Back

To find the cost of the third package, first add the costs of the first two packages: $2.77 + $3.00 = $5.77. Then subtract this total from $8.17: $8.17 - $5.77 = $2.40.

Tags

CCSS.7.EE.B.3

Front

How do you calculate Emily's weekly earnings if she made $617 in 2 weeks?

Back

To find Emily's weekly earnings, divide the total amount she made by the number of weeks: $617 ÷ 2 = $308.50.

Tags

CCSS.3.OA.A.3

Front

What is standard form in mathematics?

Back

Standard form is a way of writing numbers using digits. For example, the number 9,342,268 is in standard form.

Tags

CCSS.4.NBT.A.2

Front

How do you convert a number from expanded form to standard form?

Back

To convert from expanded form to standard form, add the values together. For example, (9 X 1,000,000) + (3 X 100,000) + (4 X 10,000) + (2 X 1,000) + (2 X 100) + (6 X 10) + (8 X 1) equals 9,342,268.

Tags

CCSS.4.NBT.A.2

Front

What is the process to find the total number of items when given partial amounts?

Back

To find the total number of items, add all the partial amounts together. For example, if you have 5 apples and 3 oranges, the total is 5 + 3 = 8 items.

Tags

CCSS.2.OA.C.4

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified place value, such as the nearest ten or hundred. For example, rounding 67 to the nearest ten gives you 70.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the difference between a fraction and a decimal?

Back

A fraction represents a part of a whole, expressed as a ratio of two numbers (numerator/denominator), while a decimal represents a part of a whole using a point (e.g., 0.5 for 1/2).

Front

How do you find the average of a set of numbers?

Back

To find the average, add all the numbers together and then divide by the total count of the numbers. For example, the average of 2, 4, and 6 is (2 + 4 + 6) ÷ 3 = 4.

Tags

CCSS.7.EE.B.3