Rounding, Estimation, Addition

Front

Round the number 82 to the nearest 10

Back

80

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round the number 56 to the nearest 10

Back

60

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round the number 134 to the nearest 10

Back

130

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is estimation in math?

Back

Estimation is finding a number that is close enough to the right answer, often used to make calculations easier.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, like the nearest ten or hundred.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Solve using an open number line: 236 + 127 = ?

Back

363

Tags

CCSS.2.NBT.B.7

Front

Solve using an open number line: 145 + 35 = ?

Back

180

Tags

CCSS.2.NBT.B.7

Front

What is an open number line?

Back

An open number line is a blank line where you can mark numbers and visualize addition or subtraction.

Tags

CCSS.2.NBT.B.7

Front

What is the nearest ten to 47?

Back

50

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the nearest ten to 73?

Back

70

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3