Operations Review

Rounding

100

Round to the nearest thousand: 7861

What is 8000?

200

Round to the nearest ten thousand: 64 197

What is 60 000? 

300

Round to the nearest hundred: 23 369

What is 23 400? 

400

Round to the nearest tens: 4790 

What is 4790?

500

Cali needs 7.64 m of cloth to make a dress. She needs 5.42 m of cloth to make a skirt. Estimate how much more cloth is needed to make a dress than a skirt. Round to the nearest metre. 

What is 3m? 

Estimating The Cost

200

If he gave the cashier $20, and his groceries cost about $9, how much would he get back in change?

What is $11?

300

Amadi bought a loaf of bread $2.49 and milk for $6.99. Approximately how much was his groceries in total?

What is $9. 

Addition and Subtraction

100

What is 823 + 174?

What is 997?

200

What is 51 004 - 498?

What is 50 506?

300

Sarah collected 326 stickers. Her friend gave her 248 more. How many stickers does Sarah have now?

What is 574 stickers.

400

The school store started the week with 834 pencils in stock. During the week, 467 pencils were sold. How many pencils are still in stock at the end of the week?

What is 367.

500

Riel has $3 075 in his bank account. He withdraws $395 on Monday and deposits $1 050 on Tuesday. How much money is in his bank account at the end of Tuesday? 

What is $3730

Find The Missing Number

100

26 + _____ = 39

What is 13?

200

17 + ______ = 52

What is 35?

300

15 = _______ - 30

What is 45?

400

52 - ________ = 27

What is 25?

500

44 - _______ = 18

What is 26?

Decimals

100

What is 800.54 + 90.52?

What is 891.06?

200

What is 94.9 - 41.871?

What is 53.029?

300

What is 260.65 - 40.9?

What is 219.75?

400

Brenda and Jenna saved up $81.75 and $45.25 respectively to buy a gift for Mother's Day. How much money did all the sisters set aside for the gift?

What is $127

500

The length of a city bus is 12.19 m. The length of a train is about 42.7 m longer than a city bus. How many metres long is a train? 

What is 54.89 m.