Place Value
What is the value of the digit 7 in the number 3,785,2103,785,210?
The value of 7 in 3,785,2103,785,210 is 700,000700,000
Write 0.3 as a fraction in simplest form
0.3 = \frac{3}{10}
Add: 34 + 58
34 + 58 = 92
Multiply: 6 \times 7
6 \times 7 = 42
Divide: 24 \div 3
24 \div 3 = 8
Write the number 4,305,6084,305,608 in expanded notation
4,000,000+300,000+5,000+600+8
Write 0.47 as a fraction and say what place value the 7 is in.
0.47 = \frac{47}{100}; the 7 is in the hundredths place (value \frac{7}{100}).
Subtract: 1,205 - 678
1,205 - 678 = 527
Multiply: 12 \times 4
12 \times 4 = 48
Divide with remainder: 55 \div 6
55 \div 6 = 9 R1
Round 56,48256,482 to the nearest thousand
56,482 rounded to the nearest thousand is 56,00056,000
Which decimal equals \frac{6}{10}? Write it as a decimal and as a fraction.
\frac{6}{10} = 0.6 (which can be simplified to \frac{3}{5}).
Add the decimals: 3.45 + 1.20
3.45 + 1.20 = 4.65
Multiply: 23 \times 5
23 \times 5 = 115
Divide: 144 \div 8
144 \div 8 = 18
Write the number described: 9 ten-millions, 2 hundreds, 5 ones, and 6 thousands in standard form
90,006,205
Indicate the decimal that is equivalent to: \frac{23}{100}
\frac{23}{100} = 0.23
Subtract the decimals: 12.30 - 4.85
12.30 - 4.85 = 7.45
Multiply: 14 \times 12
14 \times 12 = 168
Divide a 3-digit by 1-digit: 378 \div 6
378 \div 6 = 63
Explain how the value of the digit 5 changes between these two numbers: 45,32145,321 and 450,321450,321
In 45,32145,321 the 5 is in the thousands place and equals 5,0005,000. In 450,321450,321 the 5 is in the ten-thousands place and equals 50,00050,000.
A student says 0.5 equals \frac{5}{100}. Is the student correct? Explain and write the correct fraction(s) equivalent to 0.5.
Incorrect. 0.5 = \frac{5}{10} = \frac{1}{2} (not \frac{5}{100}). Provide the simplified form \frac{1}{2} as well.
Solve and show work —
245.50 + 1
304.75 - 999.25
245.50 + 1,304.75 = 1,550.25;
then 1,550.25 - 999.25 = 551.00
Multiply: 37 \times 24
37 \times 24 = 888
A teacher has 467 stickers to put equally into 9 student groups. How many stickers does each group get and how many remain?
467 \div 9 = 51 R8 (each group gets 51 stickers, remainder 8)