Exam number 1: Đi tìm kho báuQuestion 1:185,4 - 5,36 = ............Which answer is correct? a. 180,04b. 18,004c. 1,318d. 13,18Question 2:Calculate: 124,7 : 100 + 45,18 = ..............a. 46,427b. 47,426c. 46,247d. 47,246Question 3:Look at these numbers 5,586 0,293 0,675 5,595Two numbers in the box have a sum of 6,261 are .............a. 5,586 and 0,293b. 5,586 and 0,675c. 5,595 and 0,293d. 5,595 and 0,675Question 4:Brick is $28,25 per...
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Exam number 1: Đi tìm kho báu
Question 1:
185,4 - 5,36 = ............
Which answer is correct?
- a. 180,04
- b. 18,004
- c. 1,318
- d. 13,18
Question 2:
Calculate: 124,7 : 100 + 45,18 = ..............
- a. 46,427
- b. 47,426
- c. 46,247
- d. 47,246
Question 3:
Look at these numbers
5,586 0,293 0,675 5,595
Two numbers in the box have a sum of 6,261 are .............
- a. 5,586 and 0,293
- b. 5,586 and 0,675
- c. 5,595 and 0,293
- d. 5,595 and 0,675
Question 4:
Brick is $28,25 per 25kg. How much is 350kg of brick?
Answer:
- a. $395,5
- b. $9887,5
- c. $359,5
- d. $8987,5
Question 5:
If X is a natural number and 0,5 x X > 8,3 then the smallest value of X is ............
Exam number 2: Choose 2 consecutive cells which have the same or equal value. (Tìm cặp bằng nhau)
Answer:
(1) = ......; (2) = ......; (3) = .......; (4) = .....; (5) = ......; (6) = ......; (7) = ........; (8) = ......; (11) = ......; (15) = .......
Nhập số thứ tự của các ô vào chỗ (....) cho thích hợp để được các cặp giá trị bằng nhau.
Exam number 3: Fill in the blank with the suitable number (Note: write decimal number with the comma between number part and fraction part. Ex: 0,5)
Question 1:
Find x such that 2,89 < x < 11,01 and x are even natural numbers.
Answer: ................
(Write numbers in the order from smallest to greatest and use ";")
Question 2:
2,3m + 6,8m = ......... dm.
Question 3:
7m2 4dm2 = ........... cm2.
Question 4:
123004,64 : 10000 = ...............
Question 5:
15% of 370kg = .................g
Question 6:
2m2 3dm2 + 1m2 35cm2 = ........... cm2.
Question 7:
The perimeter of the star equals the perimeter of the regular hexagon. Each side of the hexagon is 16cm long. Each side of the star is ........... cm long.
Question 8:
Jane bought jelly beans. She gave 9/11 of them for Jack. If Jane kept 36 jelly beans then she bought .......... jelly beans in total.
Question 9:
Tina works 17 hours a week (Monday to Friday). Last week she worked 4,5 hours on Monday; 5 hours on Tuesday; 2,2 hours on Wednesday and 1,5 hours on Thursday. She worked ......... minutes on Friday.
Question 10:
The value of 2,73 + 4,23 + 5,73 + 7,23 + 8,73 + 10,23 + 11,73 + 13,23 +14,73 + 16,23 + 17,73 is .....................
According to the question,
Whe have: \(\hept{\begin{cases}A+B=598\\B+C=374\\C+D=300\end{cases}}\)
=> \(A+B+C+D=598+300=898\)
=> \(A+D=898-B-C=898-374=524\)