Multiplication
Division
Word Problems
Questions about Math
Random Skills
100
Name an even number.
Any number that has a 0, 2, 4, 6, or 8 in the ones place.
100
Using your book, find 76. What is 76 divided by 2? (Hint: count the hearts)
38.
100
Read this problem.
Angel has 5 dogs. All of the dogs have the usual number of legs. How many legs do they have altogether?
Show TWO ways you can solve this problem.5 + 5 + 5 + 5
or5 x 4
100
Ms. Newell wrote down all the combinations that equal 10. Which one is she missing?
0 +10 3 + 7 5 + 5 8 + 2 1+ 9
(Can you switch these numbers around? Why?)
6 + 4
(Yes, because in addition it does not matter which number comes first.)
100
Using addition, subtraction, multiplying and dividing, make up 4 problems that have the number 60 in them.
(Like 50 + 10 = 60, for example)
There's lots of different ways!
200
If you add two even numbers, will your answer be odd or even?
Even.
200
Is dividing something by 2 the same as dividing it in half? For instance, if Kammie has 44 jelly beans and wants to give Angel half, would she be dividing the 44 by 2?
Yes, as long as you are counting individual things that you don't have to cut apart.
And yes, Angel would get 22 jelly beans.
200
Read this problem.
Farrah is building a fence for her pet alligator. It is a square fence. One side is 12 feet long. What is the perimeter of the fence?
Draw a picture for this problem and label it. Then answer it.
Since the fence is a square shape, each side is the same. There are 4 sides.
12 + 12 + 12 + 12 is 48.
The perimeter of the fence is 48 feet.
200
Can you switch around the numbers in an addition problem? For instance, if the problem is 27 + 31, can you just write the 31 first to make the bigger number be on top?
Sure! In ADDITION you can switch around the numbers any way you want to.
27 + 31 = 31 + 27
They both equal.....???
200
Carolyn bought one of these:
She wants to give half of them to Kammie and half to Farrah. How would you make sure that Kammie and Farrah got half?
This really depends if you want each half to be EXACTLY equal. You might count out all the goldfish and then divide them into 2 piles. Or you might get a scoop and say "one scoop for Kammie and one scoop for Angel" until the box is empty. Or you might weigh the goldfish and then figure out how many ounces each student should get.
300
Add 245 + 675. What is the answer AND is that answer odd or even?
920. Even.
300
Divide 842,408 by 2 using MENTAL MATH ONLY.
Hint: Are the digits odd or even?
Tell me how you got to your answer.
Since each digit is even, it's easy to divide them individually by 2.
Going left to right, it would be 4, 2, 1, 2, 0, 4. Written out it would be 421,204.
300
Kami realizes she has all these partially-used containers of dish soap at her house, so she decides to pour all of the soap into one big bottle. She measures each little amount of soap as she pours it into the bottle. Container #1 has .35 cups of soap in it. Container #2 has .63 cups of soap in it. Container #3 has .9 cups of soap in it.
Before you solve this problem, estimate if the bottle will have over 2 cups of soap in it.
The bottle will have 1.88 cups of soap in it, so just under 2 cups.
300
Can you switch around the numbers in a subtraction problem? For instance, if the problem is 27 - 31, can you just write the 31 first to make the bigger number be on top?
NO!!!!!!
Subtraction doesn't work that way. You can't switch around the numbers just because you feel like it.
27 - 31 ≠ 31 - 27
300
What is something that would be really hard to divide into 2 equal pieces?
There's really no right or wrong answer here... You'll get the points if you say anything reasonable.
.....Although it would be really weird if you divided a human into 2 equal pieces. Ew.
400
What is 483 x 2?
What is one way you can check your answer?
966.
You can add 483 twice: 483 + 483 is the same thing as 483 x 2.
Because you are adding two even numbers the answer must be even.
You could break the number into pieces and multiply each part and then add them together.
400 x 2 = 800, 80 x 2 = 160, 3 x 2 = 6, then add 800 + 160 + 6 to make 966.
400
Look in Angel's book. Tell me 3 different numbers can be divided by BOTH 2 and 3.
Any number with BOTH a heart AND a triangle under it.... so 6, 12, 18, 24, 30, etc.
400
DAILY DOUBLE! Angel has a job where she gets paid in an unusual way. In January, she will get $2. In February, she will get $4. In March, she will get $8. In April she will get $16. If this pattern continues, how much money will she get in December?
2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096
400
In the book "Little House In the Big Woods" by Laura Ingalls Wilder, two girls named Laura and Mary would travel to a neighbor's house and would get a cookie each. They had a baby sister named Carrie at home. On their way back to their house, Laura and Mary would carefully nibble exactly half of their cookies and then Carrie would get what was left. Laura wrote that this didn't exactly seem fair, but they couldn't work out any other way to do it.
How much cookie did Carrie get? Does that seem fair to you?
Draw a picture of a more equal way to solve this problem.
Laura and Mary would each eat half of their cookies. Then Carrie would get two halves, which make one whole cookie. Not fair!
Each cookie should be nibbled into thirds, not halves. The girls should eat the pink parts, and save the white parts for Carrie.
400
If two even numbers added together make an even number, and two odd numbers added together make an even number, how would you get an odd number? Write 3 examples to try it out.
Examples:
2 + 3 = 5
9 + 20 = 29
A million + 3 = 1,000,003
500
If you know how to multiply by 2, can you use that information to multiply by 4?
For instance, if you know 36 x 2 is 72, what is 36 x 4?
Yes, you can just double the number again.
36 x 2 is 72, and
36 x 4 = (36 x 2) + (36 x 2) = 72 + 72, which is 144.
500
Can you divide an odd number in half? And if so, what MUST be included in your answer?
In other words, what's 25 divided by 2? What do you have to write after the whole number?
Yes, you can do this. Your answer will need a .5 or 1/2.
5 divided by 2 is 12.5 or 12 1/2.
500
Take a look at this picture. It currently has 6 steps. How many TOTAL blocks would you have if you had 11 steps?
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 is 66.
500
Write down this number using digits.
Nine trillion, four hundred thirty-eight million, two hundred five thousand, three hundred fifteen.
If you would like a friend to check your answer you may, but you will only earn 500 points.If you can write this number correctly without any help, you will get 1000 points.
9,438,205,315
500
What's the only even prime number?
Hint: There will be a heart, and ONLY a heart, on this number......... even when we get to other shapes.