âu 1:If Juan spent of his money on a game that costs 20 dollar, how much did Juan have originally to spend?Use the diagram below to reason the answer.Answer: dollar.Câu 2:Mathematician Sophie Germain worked with codes and mathematics. If each letter of the alphabet is assigned a number starting with A = 1, B = 2, etc., the values of the letters in the alphabet will start to look like this:If your code is sum of the letter values, what is the value of "MATH" ?Answer: Câu 3:It takes Abby...
Đọc tiếp
âu 1:
If Juan spent of his money on a game that costs 20 dollar, how much did Juan have originally to spend?
Use the diagram below to reason the answer.
Answer: dollar.
Câu 2:
Mathematician Sophie Germain worked with codes and mathematics. If each letter of the alphabet is assigned a number starting with A = 1, B = 2, etc., the values of the letters in the alphabet will start to look like this:
If your code is sum of the letter values, what is the value of "MATH" ?
Answer:
Câu 3:
It takes Abby twice as long as Blair and half as long as Caitlin to ride her bike to school. If it takes Blair 10 minutes to ride her bike to school, how long does it take Caitlin to go to school?
Answer: minutes.
Câu 4:
If you make the 8000km trip, about how much would it cost at today's prices of 3.00 dollar per liter of gas when your car gets 25km per liter?
Answer: dollar.
Câu 5:
Examining the operation of how to use the number of days to find the number of beans in a classroom jar is shown the table. On day 31, how many beans would be in the jar?
Answer: beans.
Câu 6:
The 112 4-grade students at Edgemont School donate pennies to raise 75 dollar for a local charity. What is the minimum number of pennies each student needs to bring if they are to meet their goal of collecting 75 dollar?
(1 dollar = 100 pennies)
Answer: pennies.
Câu 7:
What is the value of the following expression: ?
Answer:
Câu 8:
Your school is having a canned food drive for Harvesters. How many total cans would you have if you made a solid pyramid with cans on the first level, on the second level and continue the pattern all the way up to just one can on top?
Answer: cans.
Câu 9:
What is the next number in the pattern: 1, 8, 27, ...?
Answer:
Câu 10:
If your parents give you one penny on Day 1, 2 pennies on Day 2, 4 pennies on Day 3, 8 pennies on Day 4. If the pattern continues, how many pennies will your parents give you on Day 15?
Answer: pennies.
2 persons: one handshake
3 persons: three handshakes
4 persons: six handshakes
.......
=> 24 - (4 . 3) : 2 = 18 (handshakes)
answer: 18 handshakes