Đề thi toán tuổi thơ toàn quốc TH 2017

Beads are strung on a string in a pattern of two white beads followed by three black beads, and so on, as shown below.. What is the average of all the integers from 61 to 73, both numbe[r]

CUỘC THI CÂU LẠC BỘ TOÁN TUỔI THƠ TOÀN QUỐC 2017 CHILDREN’S FUN MATHS JOURNAL NATIONAL COMPETITION 2017

ĐỀ THI CÁ NHÂN TIỂU HỌC

PRIMARY SCHOOL INDIVIDUAL PAPER

Thời gian: 30 phút (Duration: 30 minutes)

Từ câu đến câu 15 chỉ viết đáp số Câu 16 viết lời giải đầy đủở mặt sau Tờ trả lời Problem The missing numbers in the boxes are of the same value

What is the missing number?

Problem Bain, Mary and Soha collected some toy cars Bain had five times as many toy cars as Soha Mary had twice as many toy cars as Soha If Bain collected 99 more toy cars than Mary, how many toy cars did the children collect in total?

Problem An ant is crawling from Point A to Point B down a staircase as in the figure

How many meters will it need to crawl to reach Point B?

Problem Beads are strung on a string in a pattern of two white beads followed by three black beads, and so on, as shown below

What is the colour of the 37th bead?

Problem What is the average of all the integers from 61 to 73, both numbers inclusive? Problem On 1st

of March some years ago, one US dollar could be exchanged for 1.45 Singapore dollar On the same day, 1000 Thai Baht could buy 50 Singapore dollar How many US dollars could 29 000 Thai Baht buy on that day?

Problem Bain’s monthly salary is $7200 Every month, he spends 3

5 of his salary and saves the rest How much money will he save in half a year?

Problem Compare the following fractions: 3232 4242 and

32 42

Problem 10 Arrange the following fractions from the smallest to the greatest: 1; ;1 56 Problem 11 What is the length of rectangle in the following figure?

The diagrams are not drawn to scale Problem 12 The side of each small square in the figure is cm

Calculate the area of the quadrilateral ABCD

Problem 13 Mary has a rectangular piece of paper measuring 30 cm by 20 cm She folded the paper into halves two times (as shown in figure below)

Mary then made two cuts each measuring cm as shown in the figure below

Find the remaining area of the paper in figure

Problem 16 (Written paper/Tự luận)

Given a triangle ABC as in the figure The length of AD = length of DE = length of EB The area of the triangle AFD is 50 cm2 If FB = FC, find the area of the triangle ABC

Problem 14 A concrete path of width m cuts across a rectangular park as in the figure The remaining area is to be planted with grass Find the area covered by grass