Would you correct and explain the grammer and usage with examples for me please? I get to make it clear as I need to teach my daughter.

- divide 6 into 30 is 5 30 divided by 6 is 5
- divide 30 by 6 is 5 Dividing 30 by 6 gives 5
- multiply 3 by 5 is 15 (means 5 x 3, right? ) 3 multiplied by 5 is 15
- 3 multiplied by 5 is 15 (means 3 x 5, right?)
- add 2 to 5 is 7 Adding 2 to 5 gives 7. I've also heard '2 add 5 makes 7'
- 2 plus 5 is 7 [Here and elsewhere wherever you have
**is **you could put **equals**.] - substract 6 from 9 is 3 Substracting 6 from 9 gives/leaves 3
- 9 minus 6 is 3
- if you take 6 from 9 is 3 I'd prefer 'you get' rather than 'is'
- if you take 6 from 9, 3 remains OK, but more commonly: '9 take away 6 is/leaves 3'
- if you take 6 from 9, it remains 3
- 9 divided by 6 is 1 with remainder 3 OK without the 'with': '1 rem. 3'
- 9 divided by 6 is 1.5

14. divide 30 by 6 is 5

30 divided by 6 is 5
in this case, 30 is dividend, then what is 6 and 5?

The **divisor **and the **quotient**, but I've never heard those words since I went to kindergarten 50 years ago. Nobody uses them nowadays in everyday contexts.
15. 3 multiplied by 5 is 15

in this case, what do we call 3, 5 and 15?

3 and 5 are **factors**; 15 is the **product**. You could phrase this problem like this: What is the product of 3 and 5?
16. 2 plus 5 is 7

in this case, what do we call 2, 5, 7?

7 is the **sum **or the **total**. I don't know about the 2 and the 5.
17. 9 minus 6 is 3

I'd prefer 'leaves'

in this case, what do we call 9, 6, 3?

Pass.

18. 9 divided by 6 is 1 with remainder 3

Better omit the 'with', as before.
in this case, how do we call 9, 6, 1. 3

9, 6, 1 as before. 3 is the **remainder**.
Thanks