Mental Math Grade 4 "seconed"

What is the total number of people that visited the art museum in January?

• 120

• 110

• 102

• 104

There were 445 non-fiction books but 83 went missing and 45

were transferred to another library. How many non-fiction books are left?

• 350

• 315

• 320

• 317

Three boxes filled with fiction books and two boxes filled with reference books were just delivered. If each box is filled with 120 books, how many fiction books are there?

• 365

• 360

• 350

• 410

A hotel has 6 floors. There are 18 suites altogether in the hotel, how many suites are there on each floor?

• 4

• 5

• 6

• 3

A hotel has 120 rooms. If each standard room can fit 2 guests, what is the maximum number of guests that all the standard rooms can accommodate?

• 255

• 240

• 260

• 235

There are 482 students in the school and there are two Grade 4 classes: Ms. Ashley’s and Mr. Ben’s classes. Ms. Ashley’s class has 15 boys and 6 girls. Mr. Ben’s class has 14 girls and 10 boys.

What fraction of the grade 4 students are boys?

• 40/45

• 30/45

• 25/45

• 15/45

* Use estimation and rounding.

The first bus had 96 passengers and the second bus had 107

passengers. There are about ________ passengers into total.

• 100

• 200

• 150

• 250

* Use estimation and rounding.

There are about 310 passengers in each car of the city train. As

there are 8 cars for each train, there are about ________ passengers on each train.

• 2,400

• 2,004

• 240

• 2,104

There are 8 assembly lines. And 12 workers are working on each assembly line. How many workers are there in total?

• 95

• 90

• 96

• 99

There are 10 assembly lines. If the factory produces 40 cars in a day, how many cars does each assembly line make each day?

• 45

• 40

• 10

• 4