Decimal Rules
If you multiply by 10 times more/greater, what direction does the decimal place move?
Right
81.6 x 10
816
What is the following number in Standard form, "ninety-six AND five tenths"?
96.5
What is the following number in Expanded form, "13.5"?
10 + 3 + 0.5
What is the following number in Word form, "6.78"?
six AND seventy-eight hundredths
If you multiply by 10 times less/smaller, which direction does the decimal place move?
Left
75.35 x 100
7535
What is the following number in Standard form, "Two hundred sixty-two AND nineteen hundredths"?
262.19
What is the following number in Expanded form, "75.35"?
70 + 5 + 0.3 + 0.05
What is the following number in Word form, "13.5"?
Thirteen AND five tenths
What tells us how many times the decimal place will move?
The number of zeroes.
1/100 of 52
0.52
What is the following number in Standard form, "Fifty-six thousand two hundred twelve AND seventy-five hundredths"?
56,212.75
What is the following number in Expanded form, "12,354.21"?
10,000 + 2,000 + 300 + 50 + 4 + 0.2 + 0.01
What is the following number in Word form, "1.603"?
What direction and how many times does the decimal place move if you multiply by 1000?
To the right three times.
1/10 of 42.7
4.27
What is the following number in Standard form, "300,000 + 10,000 + 5,000 + 300 + 20 + 1 + 0.2 + 0.03+ 0.005"?
315,321.235
What is the following number in Expanded form, "Four thousand two hundred seventy-two AND ninety-nine hundredths"?
4,000 + 200 + 70 + 2 + 0.9 + 0.09
What is the following number in Word form, "900 + 60 + 5 + 0.3"?
What direction and how many places does the decimal place move if you multiply by 1?
It does not move.
8.781 x 1000
87,810
What is the following number in Standard form, "1,000,000 + 90,000 + 20 + 0.02"?
1,090,020.02
What is the following number in Expanded form, "Eight hundred twenty thousand six hundred two AND thirty-five thousandths"?
800,000 + 20,000 + 600 + 2 + 0.03 + 0.005
What is the following number in Word form, "60,000 + 3,000 + 20 + 0.01 + 0.003"?