Can you check my problems?

Question

1. Write the phrase shown using only numbers and symbols. The sum of thirty-six plus twelve divided by 4

= (36+12)/4

2. Evalute the following expression
36 + 12 / 4

= 36 + 3 = 39

3. Write an expression for the phrase below: double five and then add 26

= (5+5) + 26

4. Maria correctly solved 20*300=6000. How can she use this information to help her solve 21*300? Explain using words, pictures, or numbers.

= She can multiply 21 by 3 to get a product of 63. SInce using multiple of a 100, she can add 2 zeros to get final answer of 6300.

5. Evaluate the following: 10+[5(23-18)]/5

= 10 + [5(5)]/5
= 10 + 25 / 5
= 10 + 5
=15

6. A t-shirt printing company can pack 24 shirts per box for shipping. If they need to ship 492 shirts to Lakeside elementary School, how many boxes will it take to ship all 492 shirts?

=492/24
= 20.5 = 21 boxes

Answer 1

Good job! I agree with all of your answers.
One comment is that for number 3 it might be better to do (5*2)+26. But other than that great job!

Answer 2

Question no 4.
20 ×300=6000
21×300=6300
Basically,21×3=63.The two zeros in which we omitted earlier will now be added to give you 6300.I hope you understand me better.Thanks for paying attention

Answer 3

Thanks Gracie and Kaka!

Answer 4

21*300
= 20*300 + 1*300 = 6000 + 300 :)