Place Value
What form is this
(2x10,000)+(2x1,000)+(2x100)+(2x10)+(2x1)=
What is expanded notation?
Which comparison sign is this >
What is greater than?
Ravi has 50 pencils. His teacher gives him 40 more pencils. How many pencils does he have now?
50 +40 =90 pencils
What is the math term for the answer of an addition problem?
What is a Sum?
What place value helps to determine if you will need to round up or down, when rounding to the nearest 10?
What is the ones place?
What is the name of place value that is ten times more than the thousands place.
What is the ten thousands place?
Which sign makes this statement true
831 ? 931
What is < less than?
If you add 200 and 300, you get 500.Explain in your own words why the answer is 500 and not 50.
because 200 means 2 hundreds and 300 means 3 hundred. Together they make 5 hundreds, which is 500. [50 would mean only 5 tens, not 5 hundreds]
What is the math term for the answer of a subtraction problem?
What is difference?
What place value helps to determine if you will round up or down, when rounding to the nearest hundreds?
What is the tens place?
The way we see and read numbers is called....
What is Standard form
How is this set of number ordered?
9,456 9,342 7,421 3,086 2,345
What is greatest to least?
Rita bought a toy for 60 cents and a book for 90 cents. She paid with 200 cents. Find total spent? How much change she got back
Total spent= 60 c + 90 c =150 cents
Change= 200 c - 150 c= 50 cents
What is the pattern or rule for the following number pairs?
(4,20) (5,25) (6,30) (7,35) (11,55)
What is multiply by 5?
If a number is halfway between two boundary numbers do you round up or down?
What is round up?
The value given to a digit based on its position in a number.
What is place value
Is this statement true or false?
4,231 = 4,321
What is false?
A box has 50 balls. Another box has 70 balls. A third box has 300 balls. If you take out one of the boxes, which two boxes together will still have more than 200 balls?
Answer: (50 + 300) and (70 + 300)
Which math term does NOT belong and why?
sum join compose total decompose
What is decompose? All other terms are addition while decompose is subtraction.
Which answer is a correct estimation when adding the numbers 79+33?
a.70 b. 120 c. 100 d. 110
What is d. 110?
289 decompose the number
200+80+9
When comparing a set of numbers what place value should you start with?
What is the greatest (biggest) place value?
A farmer has 400 mangoes in one basket and 300 in another. He says, “If I add 400 + 300, I will get 7000 mangoes.” Do you agree with him? Why or why not?
Answer-No, he is wrong. 400 + 300 = 700, not 7000. He confused hundreds with thousands.
Which math term does NOT belong and why?
quotient product separate divisor
What is product? The other terms are just division, product is multiplication.
At Sunshine Elementary there are 42 boys and 56 girls in 3rd grade. What is an approximate estimation of How many more girls than boys?
a. 9 b. 90 c. 20 d. 10
What is c. 20?