Fill in 10 numbers o, 1.2.3.4.6.7.8.9.10. Each number can only be used once
Missing questions
What numbers can I fill in? Nine or ten
1: 2.3.4.5.6.7.8 is OK
Three numbers in a row from 1 to 9 add up to 15
276
nine hundred and fifty-one
four hundred and thirty-eight
If the sum of any three numbers selected from 1, 2, 3, 4, 5, 6, 7, 8, and 9 is even, they have the same number______ There are two different choices
According to the stem analysis: 40 + 4 = 44 (species), a: there are 44 different choices
Choose three numbers from the seven numbers 1, 2, 3, 4, 5, 6 and 7 so that their sum can be divisible by 3. How many different choices are there?
2 + 3 + 5 + 3 = 13 (species), a: there are 13 different selection methods
Choose three numbers from the seven numbers 1, 2, 3, 4, 5, 6 and 7 so that their sum can be divisible by 3. How many different choices are there?
2 + 3 + 5 + 3 = 13 (species), a: there are 13 different selection methods
If the sum of any three numbers selected from 1, 2, 3, 4, 5, 6, 7, 8, and 9 is even, they have the same number______ There are two different choices
According to the stem analysis: 40 + 4 = 44 (species), a: there are 44 different choices
One out of 45 times 60 out of 7 equals
Can 60 and 45 be divided
1/45*60/7
=1/3*4/7
=4/21
First simplify, then calculate
Divide it all by 15~
(28 + 2 / 7 * 7 / 8) * 1 / 4. How much is it?
(28 + 2 / 7 * 7 / 8) * 1 / 4
=(28 + quarter) * quarter
=28 * quarter + quarter * quarter
=7 + 1 / 16
=Seven and one sixteenth
A number plus half of it equals 7.5. What's the number?
Let this number be x, x + 0.5x = 7.5, 1.5x = 7.5, x = 5; answer: this number is 5