___________
Maths
Expressions and equations
Starter quiz
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Give to class
__________ have the same set of variables and corresponding exponents.
Expressions
Constants
Variables
Equations
Like terms ✓
Which of these show pairs of like terms?
7y
and
7x
n
and
8n
✓
-x
and
4x
✓
-6e
and
-3f
12y
and
\frac{1}{2} y
✓
Which of these will simplify to
3x
?
x \times x \times x
x + x + x
✓
3 + x
3 \times x
✓
Match the calculations with the correct answer when evaluated.
5-2
⇔
3 ✓
2-5
⇔
-3 ✓
5-(-2)
⇔
7 ✓
7-2-5
⇔
0 ✓
7-2+5
⇔
10 ✓
-7+2-5
⇔
-10 ✓
Match the like terms.
5a
⇔
-2a
✓
3b
⇔
b
✓
-2c
⇔
12c
✓
8ab
⇔
-ab
✓
bc
⇔
{{1}\over{4}}bc
✓
Which of the below is not a like term?
3e^2f
-2e^2f
3ef^2
✓
2e^2f
3000e^2f
+