Podcast
Questions and Answers
What is the result of $326 + 479$?
What is the result of $326 + 479$?
- $805$ (correct)
- $775$
- $815$
- $795$
If you have $350$ marbles and give away $75$, how many marbles do you have left?
If you have $350$ marbles and give away $75$, how many marbles do you have left?
- $325$
- $300$
- $275$ (correct)
- $295$
What is the perimeter of a rectangle with a length of $10$ cm and a width of $6$ cm?
What is the perimeter of a rectangle with a length of $10$ cm and a width of $6$ cm?
- $28$ cm
- $32$ cm (correct)
- $36$ cm
- $40$ cm
How many grams are there in $3$ kilograms?
How many grams are there in $3$ kilograms?
What is $7 imes 6 + 3$?
What is $7 imes 6 + 3$?
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Study Notes
Addition
- 326 + 479 = 805
Subtraction
- 560 - 183 = 377
Multiplication
- 12 x 8 = 96
Division
- 64 / 4 = 16
Fractions
- Half of 94 is 47
Marbles
- You have 275 marbles left after giving away 75 (350 - 75 = 275)
Rounding
- 738 rounded to the nearest 10 is 740
Number Representation
- Three thousand and fifty-six is written as 3,056
Place Value
- The digit 5 in 5,832 represents 5,000
Order of Operations
- 7 x 6 + 3 = 45 (Multiplication before addition)
Factors
- The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, and 24
Perimeter of a Rectangle
- The perimeter of a rectangle with a length of 10 cm and a width of 6 cm is 32 cm (2 * (10 + 6) = 32)
Units of Measurement
- There are 3,000 grams in 3 kilograms
Perimeter of a Triangle
- The perimeter of a triangle with two sides measuring 5 cm each and one side measuring 8 cm is 18 cm (5 + 5 + 8 = 18)
Decimal Addition
- 4.2 + 3.8 = 8
Time Conversion
- There are 150 minutes in 2 hours and 30 minutes (2 hours * 60 minutes/hour + 30 minutes = 150 minutes)
Word Problems
- 6 buses are needed to carry 240 students (240 / 40 = 6)
Geometry
- A triangular prism has 9 edges
Word Problems (Green Pencils)
- There are 25 green pencils (60 - 15 - 20 = 25)
Decimal to Fraction
- 0.75 is equivalent to the fraction ¾
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