Các câu hỏi tương tự
a. 2+3/4 b.1/3+3/2-7/4 c.1/6+3/8-1/4 d.5/12+3/8x4/9 e.4/5-1/5x7/2 f.16/9-4/15:2/5
Hãy điền dấu phép tính và dấu ngoặc để có: a) 1 2 3 = 1; b) 1 2 3 4 = 1; c) 1 2 3 4 5 = 1; d) 1 2 3 4 5 6 = 1; e) 1 2 3 4 5 6 7 = 1; f) 1 2 3 4 5 6 7 8 = 1; g) 1 2 3 4 5 6 7 8 9 = 1.
Choose the correct answer. Calculate: 3/4 x 5/4 ? 8/4 15/16 15/4 8/16 Câu hỏi 2: Calculate: 1/2 - 2/5 + 5/3 .... 49/30 52/30 53/30 51/30 Câu hỏi 3: Alices mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now? 12 6 10 8 Câu hỏi 4: Choose the correct answer. Which of the following fractions is greater than 1? 2/3 7/9 11/12 14/8 Câu hỏi 5: Which fraction is equal to 51/34? 17/11 3/4 102/48 9/6 Câu hỏi 6: Fill in the blank: 37 minu...
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Choose the correct answer. Calculate: 3/4 x 5/4 = ? 8/4 15/16 15/4 8/16 Câu hỏi 2: Calculate: 1/2 - 2/5 + 5/3 = .... 49/30 52/30 53/30 51/30 Câu hỏi 3: Alice's mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now? 12 6 10 8 Câu hỏi 4: Choose the correct answer. Which of the following fractions is greater than 1? 2/3 7/9 11/12 14/8 Câu hỏi 5: Which fraction is equal to 51/34? 17/11 3/4 102/48 9/6 Câu hỏi 6: Fill in the blank: 37 minutes 48 seconds + 29 minutes 36 seconds = .... minutes 24 seconds. 67 66 65 68 Câu hỏi 7: Charlie has eighteen pens more than Bill. Bill has one third as pen as Charlie. How many pens does Bill have? 9 pens 6 pens 3 pens 2 pens Câu hỏi 8: Fill in the blank: 1m2 = ....... cm2. Choose the correct answer. 10000 1000 100 100000 Câu hỏi 9: The sum of two numbers is the greatest - four digit number and their ratio is the smallest - two digit number. Find these numbers. 900 and 99 909 and 9090 989 and 10 999 and 989 Câu hỏi 10: Write 42/63 in lowest term. 4/6 4/9 2/3 6/9
lưu ý: / là phần
tìm x
a) x+1/4 = 5/8
b) x - 3/5 = 1/10
c) 7/8 - x = 1/4
d) x: 3/2 = 1/4
đ) x nhân 2/7 = 6/11
e) 4/5 : x = 2/3
tính
a) 7/9 x 5/6
b) 1/5 : 7/10
c) 6/5 x ( 2/3 - 3/5 )
d) 1/4 : 3/8 x 6/5
ai làm nhanh và đúng thì mình sẽ tích và likes
Viết 3 số tiếp theo của dãy số sau : ( Phải giải thích vì sao viết được )
a, 1 ; 2 ; 3 ; 4 ; 5 ; .......
b, 5 ; 10 ; 15 ; .......
c, 1/2 ; 1/3 ; 1/4 ; 1/5 ; ......
d, 1 ; 4 ; 9 ; 16 ; ....
e, 0 ; 2 ; 6 ; 12 ; 20 ; ....
f, 1 ; 1 ; 2 ; 3 ; 5 ; 8 ; 13 ; .....
h, 0 ; 1 ; 8 ; 27 ; .....
k, 10 ; 100 ; 1000 ; ......
Bài5:Tính
a,2/3 + 1/6 - 5/12,1/4+1/2-1/8
b,1/4+1/2-1/8
c,5/8+3/4×1/2
d,1/4+7/24×3/12
e,5/6×3/4:15/24+1/2,14/15:10/12×5/7+1/3
a) 3/5 + 4/3
b) 2/3 - 1/5
c) 1/2 + 1/3 + 1/6
d) 3/5 + 4/7 + 7/5 + 3/7
e) 1/5 + 2/9 + 7/9 + 4/5 + 16/17 + 1
f) 1/3 x 2/7 + 1/3 x 5/7 + 15/9
Câu hỏi 1:Charlie has eighteen pens more than Bill. Bill has one third as pen as Charlie. How many pens does Bill have?9 pens 6 pens 3 pens 2 pensCâu hỏi 2:Fill in the blank: 1m2 ....... cm2. Choose the correct answer.10000 1000 100 100000Câu hỏi 3:Choose the correct answer. Calculate: 3/4 x 5/4 ?8/4 15/16 15/4 8/16Câu hỏi 4:Calculate: 1/2 - 2/5 + 5/3 ....49/30 52/30 53/30 51/30Câu hỏi 5:Which fraction is equal to 51/34?17/11 3/4 102/48 9/6Câu hỏi 6:Write 42/63 in...
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Câu hỏi 1:
Charlie has eighteen pens more than Bill. Bill has one third as pen as Charlie. How many pens does Bill have?
9 pens 6 pens 3 pens 2 pens
Câu hỏi 2:
Fill in the blank: 1m2 = ....... cm2. Choose the correct answer.
10000 1000 100 100000
Câu hỏi 3:
Choose the correct answer. Calculate: 3/4 x 5/4 = ?
8/4 15/16 15/4 8/16
Câu hỏi 4:
Calculate: 1/2 - 2/5 + 5/3 = ....
49/30 52/30 53/30 51/30
Câu hỏi 5:
Which fraction is equal to 51/34?
17/11 3/4 102/48 9/6
Câu hỏi 6:
Write 42/63 in lowest term.
4/6 4/9 2/3 6/9
Câu hỏi 7:
Choose the correct answer. Which of the following fractions is greater than 1?
2/3 7/9 11/12 14/8
Câu hỏi 8:
The sum of two numbers is the greatest - four digit number and their ratio is the smallest - two digit number. Find these numbers.
900 and 9990 9 and 9090 989 and 1099 9 and 989
Câu hỏi 9:
Alice's mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now?
12 6 10 8
Câu hỏi 10:
Fill in the blank: 37 minutes 48 seconds + 29 minutes 36 seconds = .... minutes 24 seconds.
67 66 65 68
Hãy điền dấu phép tính và dấu ngoặc để có:
a) 1 2 3 = 1;
b) 1 2 3 4 = 1;
c) 1 2 3 4 5 = 1;
d) 1 2 3 4 5 6 = 1;
e) 1 2 3 4 5 6 7 = 1;
f) 1 2 3 4 5 6 7 8 = 1;
g) 1 2 3 4 5 6 7 8 9 = 1.