Grade Five Hints Grade Five HintsHints:
1) Try putting addition signs between the different numbers.
2) Try this example:
9+8+76+5+4+3+2+1 = ? -> 7 addition signs.
Hints:
1) Divide the clock into three parts with two lines. Add up the numbers in each section. Are they equal? If not try again.
Hints:
1) 197299 sets of four moves
2) Each of the 4 moves takes 30 seconds.
Hints:
1) Batman can put all disks on one post and then switch to the second post in 20 moves. How would he reduce his task?
Hints:
1) Add up time required
2) Subtract this time from the time he has to be at work. Eg. 9:00
- 20 min= 8:40
Question #6
Hints:
1) Remember to include the numbers that will be carried.
Hints:
1) Calculate the number of tickets sold in the third year.
Hints:
1) Riddle 3 refers to the final number in the thousand place. 2) The final number begins with a 2.
Hints:
Sum each column!
Hints:
1) Round each number individually
Hints:
1) Start with Stone Henge and find the mass of the Leaning Tower of Pisa.
2) Use the mass of the Leaning Tower of Pisa to get the mass of the
Great Pyramid
Question #12
Hints:
NONE!
Hints:
1) Draw a square.
Hints:
1) Draw the section
Hints:
1) There are three sets of opposing faces that will be split into four.
Hints:
1) Draw a regular pentagon and connect every vertex to the other vertices.
Hints:
1) One whole day can be clear!
Hints:
1) Let the weights be multiples of ten.
Hints:
1) If you can divide the whole number by 2, after multiplying it by three, it must be even.
2) You can use trial and error or you can try using algebra!!
Hints:
1) Look for a pattern
Steps Cubes Sum (Top -> Bottom) ----------------------------------- 2 3 1 + 2 3 6 1 + 2 + 3
Hints:
Try looking in different directions for the pattern. Left to right is only one way.
2) 5 = 2 + 3, 2*3=6
Hints:
1) Remember, you face the direction you go!
2) Draw a diagram.
HOUSE
Hints:
1) Draw a diagram starting from Jane first AND then goes dwon ... .
Hints:
1) Draw a diagram!
2) People who wear both don't get counted twice.
Hints:
1) 1 day's (24hr) progress = (1/4 - 1/8) = 1/8m
2) If he reaches the top during the day he will not slide back.
3) First calculate the number of days to reach the 1.75 m mark.
Hints:
1) Set up a table. Race Number Position K 5 (17) (1) 7 (1) 2 3 4 RA 5 (17) (1) 7 1 (2) 3 (4) J 5 17 1 7 1 2 3 (4) Ri 5 17 1 7 1 2 (3) 4 2) Divide number and finishing order up by male or female.
Hints:
1) Write down all the combinations before going farther. 2) Each distinct combination represents a child.
Hints:
1) Put the largest numbers in the tens places. 2) Look at this example before putting numbers in the ones place of the two digit numbers. Eg. 52 * 43 = 2236 53 * 42 = 2226
Hints:
1) What is the total they must earn to cover expenses and each have $1000?
2) Remember there are 4 months and 4 boys.
Hints:
1) Just look at the number of puppies each year.
Hints:
1) Draw a diagram -> use least common multiples.
x = Frog 1 o = Frog 2
Hints:
1) The remainder is the number of bannanas sold at regular price.
Hints:
1) The students can only use 95 of each treat because there is not enough to give two of any one treat.
Hints:
NONE!!
Hints:
1) How many are eliminated after they finish 8 games? 2) Make a table.
Hints:
1) The longest time will be the answer, one person will have to wait for the other.
Hints:
1) Try drawing a diagram!
Hints:
1) $9.75 - $8.00 = $1.75
Hints:
1) Some of the people have been counted twice.
Hints:
1) 19 = 18 + 1, 72 is divisible by 18
Hints:
1) In a 3 * 3 * 3 cube there are 27 unit cubes.
Hints:
1) Each three points determine one triangle.
2) Number the points and find all the combinations of three different points.
Hints:
1) Start from the fact that she has been a widow for 24 years.
Hints:
1) Try drawing a diagram of a ball that bounces a few times.
Hints:
1) Find the total cost then divide by two.
Hints:
1) #jacks / (#jacks/min) = #minutes
Hints:
1) Multiply the fraction by the length.
Hints:
1) The difference between the numbers will be one.