Rounding to the Nearest Ten Using a Number Line

You can _______ a number to find an estimate.

• multiply

• add

• round

• change

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Rounding means...

• finding the exact answer.

• always making a number smaller.

• always making a number bigger.

• making a number simpler, but keeping its value closer to what it was.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Which number does NOT round to 270 when rounded to the nearest ten?

• 266

• 268

• 276

• 274

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Match each number to the number that shows it rounded to the nearest ten.

• 70

• 84

• 80

• 15

• 30

• 34

• 10

• 73

• 20

• 9

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

A school was collecting cans for a can drive. Find the total number of cans collected and round it to the nearest tens.

Mathematical Equivalence

OFF

Match the following numbers to the number it rounds to!

• 570

• 585

• 580

• 577

• 590

• 572

Tags

rounding to the nearest 10

Round each number to the nearest ten.

• 590

• 465

• 620

• 328

• 230

• 619

• 330

• 232

• 470

• 587

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 57 to the nearest ten

• 60

• 50

• 70

• 80

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Match the number to the number it would round to the nearest 10.

• 340

• 995

• 690

• 344

• 680

• 689

• 350

• 347

• 1000

• 681

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Which point on the number line would not round to 30 when rounded to the nearest 10?

• A

• B

• C

• D

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3