Addition
The first bus had 96 passengers and the second bus had 107 passengers. There are about ________ passengers into total.
a. 100
b. 150
c. 200
c. 200
The school ordered 980 lollipops for the fun fair and used 704 lollipops. There were about __________ lollipops left.
a. 100
b. 200
c. 300
c. 300
The distance between two bus terminals is 390 km. It takes the bus 4 hours to go from one terminal to another. The speed of the bus is about ________ km per hour.
a. 100
b. 50
c. 150
a. 100
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.
a. 2,200
b. 2,400
c. 2,300
b. 2,400
3 × 9 + 7
34
In the morning, Irene spent 279 minutes at the library doing her school project. She ate her lunch at a nearby restaurant for 45 minutes and spent another 188 minutes at the library in the afternoon. She spent about ________ minutes at the library in all.
a. 510
b. 320
c. 470
c. 470
1,348 people attended the school’s fun fair. 526 of them are children and about __________ of them are adults.
a. 900
b. 700
c. 800
c. 800
At the fair, Mona has 336 ride tickets. Each ride on the Ferris wheel costs 8 tickets. About how many times can she ride the Ferris wheel?
a.30
b.40
c. 50
b.40
There are about 795 houses in this region. The average family size is 6 people. There are about __________ people living in the region.
a. 4,800
b. 5,000
c. 5,500
a. 4,800
(67 − 18) ÷ 7 × 3
21
In 2016, the population of a region was 91,274. In 2017, the population was increased by 6,015. In 2017, the population was about __________.
a. 96,300
b. 97,300
c. 99,800
b. 97,300
In the year of 2017, the highest number of ambulance calls in a month was 8,312. The lowest number of ambulance calls in a month was 791 times. The difference between the highest and lowest use in a month is about ______ calls.
a. 7,300
b. 7,500
c. 7,800
b. 7,500
At the fun fair, 1,474 candy floss were made over 3 days. About _______ candy floss were made each day.
a. 500
b. 400
c. 350
a. 500
For lunch at school, each class ordered 21 slices of pizza. If there are 25 classes, the school ordered about __________ slices of pizzas.
a. 500
b. 400
c. 200
a. 500
(7 × 8 − 4) ÷ (6 − 2)
13
In March, 58,333 monthly passes were sold. In April, ______ monthly passes were sold, which is 2,614 more than the number of monthly passes sold in March.
a. 55,700
b. 60,000
c. 61,000
c. 61,000
The population of a city is 67,721 and the neighboring city has a population of 52,103. The difference between two cities is about __________.
a. 13,000
b. 14,000
c. 16,000
c. 16,000
There are 8,336 doctors being trained in the country. Half of the doctors, which is about __________, will finish their training in two years.
a. 4,000
b. 4,200
c. 4,400
b. 4,200
Each school bus can take 52 students. 89 school buses can take about __________ students.
a. 4,400
b. 4,500
c. 4,300
b. 4,500
42 × (8 − 3)
80
During the night shift, a factory produced 35,391 small paper clips and 41,024 large ones. About how many paper clips did the factory produce during that shift?
a.77,400
b.75,500
c. 76,400
c. 76,400
There are 38,412 nurses registered in the region this year. There are about __________ less nurses than last year when there were 42,198 nurses.
a. 3,800
b. 3,900
c. 4,600
a. 3,800
There are 26,358 children living in this town. Half of the children are boys. There are about _________ boys living in this town.
a. 12,800
b. 13,000
c. 13,800
b. 13,000
A train terminal has 11 platforms. Each platform has about 125 trains departing each day. There are about ______ trains leaving the terminal every day.
a. 1,200
b. 1,400
c. 1,500
b. 1,400
23 × 32
72