ITMC - Lớp 4 (Đề 7)

I have some money. My sister has 97 baht less than a half of my money.

If my sister has 555 baht, then how much money that I have?

(Note that baht is the currency of Thailand.)

• 906

• 910

• 1304

• 922

• 926

Let 10 + 100 + 1000 + 10000 + 100000 =  x ,

and 9 + 98 + 997 + 9996 + 99995 =  y .

Find x -  y .

The side lengths of a rectangle are all integers that greater than 1.

If the area of this rectangle is 391unit squares, then what is the perimeter of the rectangle?

A man drive a car to bring his son from home to a school.

The distance between home and school is 120 kilometers.

The car travels with a constant speed at 90 kilometer per hour.

If he leaves from home at 7.00 in the morning, what time that he arrives the school?

• 08.40

• 08.35

• 08.30

• 08.25

• 08.20

Natcha is an egg merchant.

Today she has 2565 eggs. She takes all the eggs into k baskets for sale.

Each basket will contain 24 eggs, except for the last basket that must be contained r eggs where r < 24.

Find the value of k + r .

• 125

• 126

• 127

• 128

• 129

   Consider the largest two-digit number n that satisfies all of the following conditions.

(1)    when n is divided by 7, the remainder is 1.

and (2) when n isdivided by 6, the remainder is 2.

Find the sum of all digits of n.

Given that three sides length of a right-angle triangle are 7.5 cm, 10 cm, 12.5 cm.

Find the area of the triangle, in cm².

• 36

• 49

• 64

• 66

• 72

Mr. M runs around the rectangular park for 4 laps with total distance of 5 kilometers.

If the park has a difference between side length of the width and the breadth is 75 meters, then find the length of the width.

• 1250

• 555

• 350

• 275

• 250

There are 5 buildings A, I, T, M, C at the top of each building has bridges connected between buildings as shown in the figure.

Now, a girl stays at the top of building A.

How many ways are there that she walks with the bridge to visit all building exactly once?

A sequence of positive integer where n^th number of the sequence is written all first n positive integers consecutively.

The 1^st number is 1

The 2^nd number is 12

The 3^rd number is 123

The 4^th number is1234

The 5^th number is 12345

The 6^th number is123456

. . . Continues this pattern

Find the smallest two-digit positive integer k such that the k^th number in the sequence is divisible by 8.

• 10

• 11

• 12

• 13

• 14