Asmo đề thi thử amo số 3 lớp 3 2020

2020 is multiplied by a number and the product remains the same.. Which of the following is different from the others?. During break time, one of five students wrote something nasty on

ĐỀ THI THỬ AMO SỐ 3- LỚP 3-2020 MULITIPLE-CHOICE QUESTION

Question 1 Which rule can be used to explain this number pattern?

1,4,13,40,121,…

A Multiply by 1, then multiply by 2, then multiply by 3, and so on

B Multiply by 3 and add 1

C Multiply by 3 and subtract 1

D Add 0, then add 1, then add 2, and so on

E None of the above

B

Question 2

A 3

B 4

C 5

D 6

E 8

A

Question 3 2020 is multiplied by a number and the product remains the same

The number is

C.0

D

1 2020

E.8080

C

Question 4 Gene Golub was born on 29th February His birthday comes:

A

Question 5 How many months in a year have exactly 31 days?

E every decade

E 8

1; 3;5;7;8;10;12

D

Question 6 Which of the following is different from the others?

E All are the same

D

Question 7 Fin the next figure

E none of the above

C

Question 8 During break time, one of five students wrote something nasty

on the blackboard When the teacher asked, they answered in the following order:

Andrew: “It was Barry or Cris.”

Barry: “Neither Elsa nor I did it.”

Cris: “Andrew and Barry is telling the truth.”

Daniel: “either Andrew or Barry is telling the truth.”

Elsa: “Daniel is not telling the truth.”

The teacher knows that three of them never lie while the other two may lie Who wrote it?

E Elsa

C

Question 9 How many small cubes are required to create this solid shape?

E

Question 10 Which of the following options show the reflection of the

image over the dotted line?

F none of the above

Question 11 Suppose it is now the month of December What month will it

be 90 calendar months from now?

E

Question 12 How many squares are there in the diagram below?

C

Question 13 find the next number in the following sequence

1,1,2,3,5,8,……?

C

Question 14 two years ago the sum of Amy’s and Bob’s ages was 8 What

will the sum of their ags be after 5 years from now?

E 24

E May

E 12

E None of the above

8 + 2x2 + 2x5 = 22

C

Question 15 Peter and the other 4 kids are having a race If peter overtakes

kid who in is the third place, what position is peter in right now?

C

SHORT-ANSWER QUESTIONS

Question 16 Few passengers are standing in a row Kevin is at the 17th

position from the front, and Evan is standing at the 10th position from the

the back How many passengers are there in the row?

ĐA: 16 + 1 + 16 =33

Question 17 One day Randy was bored, and he wrote all the whole numbers

from 40 to 100 on his paper How many times did he write the digit “8” on

his paper?

ĐA:

Đơn vị : 48; 58; ;98

Hàng chục: 80, 81;,… 89

16

Question 18 Find the sum of all odd numbers between 10 and 40

11; 13; …;39

15 số hạng

Tổng = 50 x 15: 2 = 375

Question 19

Find the value of the 3-digit number MOO

ĐA: 100

E None of the above

E Fifth

Question 20 How many triangles are there?

17

Question 21 Find the sum of the largest 2 digit number and the smallest 5

digit number

10099

Question 22

ĐA:

28 x 3 = 84 cm

Question 23

Số thứ 40 là số nào?

ĐA: 9

Question 24 After buying 4 crayons for $6 each, Hayley is left with $8 How

much amount did she have at first?

4 x 6 + 8 = 32 đô

Question 25

Điền số thích hợp?

ĐA: 5