Parentheses are placed differently in each of the following expressions. Drag the tiles to match the correct answer with each of the expressions. Tiles may be used once, more than once, or not at all.
162888196
30
−
2
×
3
+
4
=
(
30
−
2
)
×
3
+
4
=
30
−
2
×
(
3
+
4
)
=
(
30
−
2
)
×
(
3
+
4
)
=
First expression: 162888196.
No tiles are needed for this one because it doesn't involve any parentheses.
Second expression: 30 − 2 × 3 + 4 =.
The tiles should be arranged like this:
( 30 − 2 ) × 3 + 4 =
The parentheses go around the subtraction of 2 from 30, since that needs to be done before the multiplication by 3.
Third expression: 30 − 2 × (3 + 4) =.
The tiles should be arranged like this:
30 − 2 × (3 + 4) =
The parentheses go around the 3 + 4, since that needs to be done before multiplying by 2.
Fourth expression: (30 − 2) × (3 + 4) =.
The tiles should be arranged like this:
(30 − 2) × (3 + 4) =
Both sets of parentheses are needed, since both sub-expressions need to be evaluated before multiplication.
i dont think this is the answer
I'm sorry to hear that. Can you please let me know what you think the correct answer is, or which part you think is incorrect? I'd be happy to help clarify any confusion or misunderstanding.
Here is the correct matching of the expressions with the placement of parentheses:
162888196
(30 - 2) × 3 + 4 =
30 - 2 × (3 + 4) =
(30 - 2) × (3 + 4) =