Estimate addition and subtraction

Which number sentence shows the best estimate of the total number of coins?

• 350+180+40= 570

• 300+100+80= 480

• 360+140+80= 580

• 340+140+ 80 =590

Tags

CCSS.3.OA.D.8

CCSS.3.NBT.A.2

CCSS.3.NBT.A.1

Amy rode her bike last weekend. Which is the best estimate of the total number of miles she rode her bike?

• 80 miles

• 60 miles

• 70 miles

• 90 miles

Tags

CCSS.3.OA.D.8

CCSS.3.NBT.A.2

CCSS.3.NBT.A.1

Hollis jogged 278 laps last month. Her friend Hartley jogged 263 laps. How many laps did they jog combined?

• 421 laps

• 541 laps

• 531 laps

• 431 laps

Tags

CCSS.3.OA.D.8

Colton has $925. He wants to buy a go-kart that costs $559. How much money will he have left after he buys the go-cart?

• $366

• $ 434

• $1,484

• $356

Tags

CCSS.4.OA.A.3

Which is the best estimate of the total number of books they read?

• 220 books

• 180 books

• 200 books

• 160 books

Tags

CCSS.3.OA.D.8

CCSS.3.NBT.A.2

CCSS.3.NBT.A.1

About how many more tickets were sold on Friday night than Saturday night?

• 100

• 400

• 200

• 300

Tags

CCSS.3.OA.D.8

CCSS.3.NBT.A.2

CCSS.3.MD.B.3

Claire's Cookies sold 253 cookies in October, 212 in November, and 225 in December. How many cookies did Claire's Cookies sell in October and November combined?

• 476 cookies

• 478 cookies

• 690 cookies

• 465 cookies

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

This winter, Bella plans to collect 749 pine cones. She has 156 pine cones. How many pine cones does she need to add to her collection?

• 593 pine cones

• 905 pine cones

• 614 pine cones

• 896 pine cones

Tags

CCSS.3.OA.D.8

Round 156 to the nearest 10.

• 150

• 200

• 160

• 100

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Find the sum of the model.

• 483 + 125 = 608

• 583 + 125 = 708

• 473 + 125 = 598

• 473 + 124= 597

Tags

CCSS.2.NBT.B.7