3rd Unit 4 Review

What number is halfway between 1,000 and 2,000?

• 1,050

• 1,500

• 1,555

The number 850 is halfway between which pair of numbers?

• 700 and 800

• 800 and 900

• 840 and 880

• 840 and 900

Round 945 to the nearest hundred.

• 900

• 950

• 1000

Anna's Bakery uses 628 loaves of bread each week. What is that number rounded to the nearest hundred?

• 600

• 630

• 620

• 700

In a library, there are 402 science books and 598 history books. Which number sentence shows the best way to estimate the total number of books using compatible numbers?

• 400 + 600 = 1000

• 400 + 500 = 900

• 400 + 700 = 1100

• 500 + 500 = 1000

Estimate. Which two numbers have a difference of about 500?

Select all that apply.

• 1000 and 500

• 800 and 300

• 700 and 200

• 600 and 100

Jenny has 45 pennies, 38 nickels, and 17 dimes. How many coins does she have in all?

• 90 coins

• 100 coins

• 93 coins

• 55 coins

A bag contains 45 balls and 15 bats. Which how many items are in the bag altogether?

• 90

• 45

• 30

• 60

The Amazon River is 4000 miles long. The Nile River is 4250 miles long. How much longer is the Nile River than the Amazon River?

• 250 miles

• 350 miles

• 450 miles

• 550 miles

On Monday, 925 people attended the basketball game. On Wednesday, 782 people attended. How many more people attended the basketball game on Monday than on Wednesday?

• 143

• 703

• 1707

• 263