Billy has $3.00. Bubble gum costs $.30. He bought four pieces. How much money does Billy have left?

$.30
$.60
$1.20
$1.80

Billy spent 4 * $0.30 = $<<4*0.30=1.20>>1.20 on bubble gum.

Billy has $3.00 - $1.20 = $<<3-1.20=1.80>>1.80 left. Answer: \boxed{1.80}.

One rectangle is divided into 4 parts. How much is one part?

one whole
four wholes
one half
one quarter

One rectangle divided into 4 parts means that each part represents one quarter of the whole rectangle. Therefore, one part is equal to one quarter. Answer: \boxed{\text{one quarter}}.

Which is NOT true?

8 + 7 = 7 + 8
8 = 12 - 4
11 + 4 = 7 + 8
8 + 7 = 13 - 2

The statement that is NOT true is: 11 + 4 = 7 + 8.

Which is NOT true?

11 = 11
11 = 18 - 7
11 + 5 = 15 + 11
11 + 3 = 6 + 8

The statement that is NOT true is: 11 + 5 = 15 + 11.

Which is NOT true?

10 + 9 = 7 + 12
10 = 10
10 - 4 = 3 + 3
10 = 19 - 11

The statement that is NOT true is: 10 + 9 = 7 + 12.

Which is NOT true?

7 + 7 = 19 - 5
9 + 9 = 11 + 7
19 = 13 + 5
20 - 12 = 4 + 4

The statement that is NOT true is: 9 + 9 = 11 + 7.

Which is NOT true?

16 + 3 = 11 + 8
16 = 16
16 - 4 = 7 + 6
16 = 19 - 3

The statement that is NOT true is: 16 + 3 = 11 + 8.

8 students have 5 flowers each.

Which helps you find the total number of flowers?

8 - 7
8 ÷ 5
8 + 5
8 × 5

The operation that helps you find the total number of flowers is 8 × 5.

Which is NOT true?

9 + 4 = 17 - 4
8 + 7 = 14 + 3
11 = 19 - 8
5 + 8 = 20 - 7

The statement that is NOT true is: 8 + 7 = 14 + 3.

7 students have 3 books each. Which helps you find the total number of books?

7 - 3
7 ÷ 3
7 × 3
7 + 3

The operation that helps you find the total number of books is 7 × 3.

Which is correct?

2 + 7 = 5 + 3
4 + 2 = 9 - 3
1 + 2 = 6 - 4
4 + 4 = 9 - 2

The statement that is correct is: 4 + 2 = 9 - 3.

It is 5:15 pm now. What time will it be in 40 minutes?

5:45 am
5:45 pm
5:55 pm
6:00 pm

It will be 5:55 pm in 40 minutes.

Which of the following shows 679 rounded to the nearest 10 and nearest 100?

670, 600
680, 600
680, 700
670, 700

679 rounded to the nearest 10 is 680, and rounded to the nearest 100 is 700. Therefore, the correct answer is 680, 700.