4th Math review

The school has 150 students in each grade. If there are 5 grades, how many students are there?

Do you add, subtract, multiply or divide?

• Add

• subtract

• multiply

• divide

250 x 2 =

• 400

• 500

• 600

• 700

40 divided by 5 =

Hint use multiplication to help (5s tables)

• 5

• 6

• 7

• 8

Remember rounding?

WHen you round to the hundreds you look at the tens

0-4 you stay, 5 and more you move up

Round to the hundreds 21,578

If there are 21, 578 dogs at the state shelters, about how many cages do they need?

• 30,000

• 21,500

• 21,600

• 21,700

Remember the box method?

Multiply using the box method or standard algorithm

45

x 30 =

• 1230

• 1330

• 1350

• 1300

Compare these fractions (cross multiply)

3/5 and 1/10

• 3/5 is greater

• 1/10 is greater

• they are equal

• you cant compare fractions

WHich fraction equals 1/4?

Cross multiply to check

• 3/8

• 3/16

• 2/8

• 6/8

Remember this?

How many wholes?

Are these tenths or hundredths?

What is the correct amount shaded?

• 2.6

• 2.4

• 2.06

• 2.04

60

x 100

Remember multiply the basic fact and then put the ZEROES

• 60

• 600

• 6000

• 60000000000

35

x 10

• 350

• 35000

• 35

• 35000