Grade 3 IMO – Tuyển chọn câu hỏi luyện thi IMO Lớp 3

Grade 3 IMO

Week 1

Choose correct answer(s) from the given choices

(1) Add: 740 m 92 cm and 16 m 35 cm

a. 757 m 27 cm             b. 758 m 35 cm
c. 760 m 31 cm             d. 761 m 27 cm

(2) How many hours equal 300 minutes?

a. 7          b. 4
c. 5          d. 18000

Fill in the blanks

(3) A jug contains 450 ml of pear juice. The number of glasses that can be filled with the juice if each glass can hold 50 ml is …………..

(4) It takes Sarah 2 hours and 15 minutes to reach her home town by bus. If she started her journey at 06:05 PM, the time at which Sarah will reach his home town will be ……….: ……….,………(hh:mm AM/PM)

(5) A cookie factory makes 8 packs of cookies everyday. Each pack of cookies contains 3 pieces of cookies. The factory makes …………….. cookies in 4 days.

(6)

There will be …………… blocks in the next figure.

Answer the questions

(7) If 25 lemons are equally distributed among 3 friends, what does R1 represent in the box shown below? 25 ÷ 3 = 8 R1

(8) If the time now is 10:35 AM, then what will the time in 1 hour and 25 minutes be?

(9) The following pictograph shows the number of girls in each class of a girls school.

Find :
(a)The class which has the maximum number of girls.
(b) The class which has the minimum number of girls.
(c) The total number of girls in the school.

(10) If ♥ + ♥ + ♥ + ♥= 2, find the fractional value of ♥ .

Week 2

Choose correct answer(s) from the given choices

(1) What number do we get if we add 100 two times in 373?

a. 746         b. 1119
c. 573         d. 473

(2) Identify the figure in which the problem figure is embedded/hidden.

(3) What is the sum of the number sequence  1 + 2 + 3 + 4+. . . . . +19 + 20 ?

a. 380        b. 190
c. 210        d. 420

(4) The given pictograph shows the number of teddy bears sold in one week.

Find:

(a) The day(s) on which the sale of the teddy bears is minimum.
(b) The number of teddy bears sold on Monday.

a. Wednesday, 16      b. Tuesday, 14
c. Tuesday, 18            d. Wednesday, 15

(6) Each part on the number line drawn below is of 1 cm.

The sum of AB + BC + CD is equal to the length of which of the following:

a. AC           b. BF
c. BC          d. AD

Answer the questions

(7) A factory makes 572 roller skates in a day. How many roller skates will it make in 7 weeks?

(8) Find the difference between 77 km 438 m and 58 km 312 m.

(9) Add:

613 km 200 m and 293 km 947 m

(10) Subtract:

809 km 857 m from 856 km 833 m

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