Scientific Notation
Write 5,600,000 in scientific notation.
5.6×106
What is 6×4÷2?
24÷2
=12
Simplify the expression:
3x+4x
7x
What is 6×7
42
Convert to Decimal
1/4
0.25
Which is greater: 7.1×103 or 6.9×104
6.9×104 (which is 69,000 vs. 7,100)
What is (12÷3) × (10÷2)
4×5=20
Evaluate the expression when x=2x
5x−3
7
What is 12x8
96
Convert to Decimal:
1/2
0.50
Write 0.000045 in scientific notation.
4.5×10-5
∣3−7∣+23
4+23=27
Write an expression for:
"Seven more than twice a number nn"
2n+7
If 8×9=72
what is 72÷8?
9
Convert to Decimal:
7/10
0.7
Which of the following is the correct order from least to greatest?
A. 3.2×105, 4.1×103, 2.9×106
B. 4.1×103, 3.2×105, 2.9×106
C. 2.9×106, 3.2×105, 4.1×103
D. 3.2×105, 2.9×106, 4.1×103
Explanation: Compare exponents:
Answer: B
2×∣5−9∣+32
40
Combine like terms:
2x+3+5x−1
7x+2
A baker makes 48 cookies and packs them in boxes of 6.
How many boxes does she need?
48÷6=8 boxes
Convert to Decimal:
5/8
0.625
Arrange the following numbers in descending order:
9.0×10-5, 2.5×10-2, 7.1×10-3
2.5×10-2,
7.1×10-3
9.0×10-5
Evaluate: 10−(2+3)2÷5
A school charges $15 per student for a field trip. The school also pays a flat fee of $100 for the bus.
Write an expression for the total cost if s students go on the trip.
Expression: 15s+100
A baker made 120 cookies and packed them into boxes of 10.
How many boxes did she use?
120÷10=12 boxes
Convert to Decimal
2/25
0.08