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elp me solve this problem vs. Lesson 10: Write numbers including:
a) 5 tens and 5 units
6 tens and 0 units
3 thousand and 3 units
b) 5 hundred and 5 tens and 5 units
6 hundred 1 dozen and 3 units
60 thousand 6 hundred and 6 units
a hundred b tens c units (a; b; c is a digit, a is not 0)
a) 55 , 60 , 3003
b) 555 , 613 , 60606
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how many 3 digit numbers that are multiples of 6 in which the sum of hundreds digit and units and units digit is twice tens digit ?
Write the words in number form which consist of: 7 ten thousands, 6 thousands, 3 hundreds, 4 tens and 2 units.
76342
Dịch: Tìm số có đọc: bảy mươi nghìn, 6 nghìn, 3 trăm, 4 chục và 2 đơn vị.
=> Số đó là: 76342 (đã chứng minh)
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A natural number will be increased by 9 times ifthe digit 0 is written between tens digit and units digit.The number is
Cac ban ơi cho minh hoi A natural number will increased by9 times ifthe digit 0 is written between tens digit and units digit.The number is
bn học tiếng anh very good !!!!!!!!!!!hihihihihi
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Write the words in number form which consist of: 7 hundred thousands, 6 thousands, 3 hundreds, 4 tens and 2 units.Answer: Câu 2:Fill in the sequence with the missing number in order to have 3 consecutive natural numbers.897; ; 899Câu 3:Fill in the sequence with the missing number in order to have 3 consecutive natural numbers.; 87; 88Câu 4:How many single digit numbers are there?Answer: numbers.Câu 5:6 is just after of 5 and 5 is just before of 6. What is the product of just after and just bef...
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Write the words in number form which consist of: 7 hundred thousands, 6 thousands, 3 hundreds, 4 tens and 2 units.
Answer:
Câu 2:
Fill in the sequence with the missing number in order to have 3 consecutive natural numbers.
897; ; 899
Câu 3:
Fill in the sequence with the missing number in order to have 3 consecutive natural numbers.
; 87; 88
Câu 4:
How many single digit numbers are there?
Answer: numbers.
Câu 5:
6 is just after of 5 and 5 is just before of 6. What is the product of just after and just before of 10?
Answer:
Câu 6:
Jean has 3014 beads. She has 497 beads less than Gillian. How many beads do they have altogether?
Answer: They have beads altogether.
Câu 7:
There are 56 apples in a basket. of them are green and the rest are red. How many red apples are there?
Answer: There are red apples.
Câu 8:
The perimeter of a square garden is 36m. What is its area?
Answer: Its area is .
Câu 9:
248 boys and 418 girls were divided into groups of 9. How many groups were there altogether?
Answer: groups.
Câu 10:
Mr Junior bought 1 magazine, 1 book and 1 pen. The pen costs 5 dollar, the book costs 31 dollar more than the pen. The magazine costs twice as much as the book. How much did he spend on the three things?
Answer: He spent dollar.
Given a division.If dividend and divisor are increased to 90 and 6 units respectively,then the quotient and the remainder are not changed.
Exer 1: Given two natural numbers whose sum are 78293. The bigger number where 5 is the units digit and 2 is hundred digit. If we clean these digits then we obtain a number which equals the smaller number. Find two natural numbers.
Exer 2: Prove that: If x, y in N and x + 2y divisible by 5 then 3x - 4y divisibles by 5.
Exer 3: Given that 2x + 5y ⋮ 7. Prove that 4x + 3y ⋮ 7.
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Exer 1: Given two natural numbers whose sum are 78293. The bigger number where 5 is the units digit and 2 is hundred digit. If we clean these digits then we obtain a number which equals the smaller number. Find two natural numbers.
Exer 2: Prove that: If x, y \(\in\) N and x + 2y divisible by 5 then 3x - 4y divisibles by 5.
Exer 3: Given that 2x + 5y \(⋮\) 7. Prove that 4x + 3y \(⋮\) 7.
Exer 1:
Solution:
Suppose that, the unknown number is: \(\overline{x215}\) (where x \(\in\) N).
When we clean three digits then the smaller number is \(\overline{x}\).
We have: \(\overline{x215}\) + \(\overline{x}\) = 78293
\(\Rightarrow\) 1000. \(\overline{x}\) + 215 + \(\overline{x}\) = 78293
1001. \(\overline{x}\) = 78078
x = 78
Thus, we found two natural number: 78215 and 78.
Exer 2:
Solution:
We have: x + 2y \(⋮\) 5
\(\Rightarrow\) 2x + 4y \(⋮\) 5
(2x + 4y) + (3x - 4y) = 5x \(⋮\) 5
\(\Rightarrow\) 2x + 4y \(⋮\) 5
Deduce 3x - 4y \(⋮\) 5.
Exer 3:
Solution:
We have: 2x + 5y \(⋮\) 7
4x + 10y \(⋮\) 7
(4x + 10y) - (4x + 3y) = 7y \(⋮\) 7
\(\Rightarrow\) 4x + 10y \(⋮\) 7
Deduce 4x + 3y \(⋮\) 7.
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Sap xep cac tu sau thanh cau co nghia.
1. have/ they/ the/ and/ houses/ in/ the both/ in/ country/ city............................................................................................................
2. speaks/ English/ Lan/ not/ but/ Chinese/ only/ also........................................................................................................................
3. sixteen/ are/ units/ book/ the/ there/ in.....................................................................
Đọc tiếp
Sap xep cac tu sau thanh cau co nghia.
1. have/ they/ the/ and/ houses/ in/ the both/ in/ country/ city............................................................................................................
2. speaks/ English/ Lan/ not/ but/ Chinese/ only/ also........................................................................................................................
3. sixteen/ are/ units/ book/ the/ there/ in............................................................................................................................................
4. This/ have/ two/ does/ room/ doors.................................................................................................................................................
5. there/ four/ is/ table/ and/ a/ the/ chairs/ room/ in ?........................................................................................................................
Sắp xếp các từ sau thành câu có nghĩa:
2. speaks/ English/ Lan/ not/ but/ Chinese/ only/ also
➝ Lan not only speaks English but also Chinese.
3. sixteen/ are/ units/ book/ the/ there/ in
➝ There are sixteen units in the book.
4. This/ have/ two/ does/ room/ doors?
➝ Does this room have two doors?
5. there/ four/ is/ table/ and/ a/ the/ chairs/ room/ in ?
➝ Is there a table and four chairs in the room?
Câu 1 mình ko hiểu đề!