Lisa Regan - Mind-Bending Math Puzzles

CONTENTS TIPS ON SOLVING PUZZLES FROM A WISE OLD BIRD Here are some wise words to help you on your way. RACE AGAINST TIME Sanjay starts his sand sculpture at 1: 30 p.m. Each dragon takes him 45 minutes, and a castle takes an hour and twenty minutes. Sadly, the tide washes it all away at 6: 30 p.m. How long will the completed sculpture be on display? PARKING SPACE There is room in each garage for three cars or two vans. Cars and vans cannot share the same garage.

How many of these vehicles will have to park elsewhere? Best in Show Each rabbit has been given a number. Which numbered rabbits have won prizes? MONSTER MUNCH Using your finger to trace a path, help the monster chomp its way through a total of 60, without retracing its steps at any point. T-SHIRT TRENDS Study the designs on these T-shirts, and then figure out the answers to the questions. How many stars do you predict there will be on the sixth shirt in the collection? And how many stars on the 100th T-shirt? Will the 22nd shirt have long sleeves or short sleeves? What number of spots do you predict will appear on the 30th T-shirt? SNACK TIME Each creature in this food pyramid eats ten of the thing below it. How many frogs must 10 snakes eat? Sail Away The passengers must solve the problems on their tickets to see which ship they should board. Which ship has the fewest passengers? HUNGRY GAMES If 6 caterpillars can eat 60 leaves in an hour, how long would it take for 8 caterpillars to eat 40 leaves? GIFT WRAPPED Which of the shapes below folds into the box that Staceys present came in? TOY CARS Penny has put her toy cars into boxes.

The cars are different colors. Can you figure out the probability of taking a green car from each box? The first has been done to show you how. SNEAKY SNACKS Each snack is worth a different number. When they are added across or down, they equal the total in the circle. What snack is missing? Movie Star Karina owns 60 saris 15% of them are green, and 24 of them are pink. UPSY DAISY These are so easy that Daisy can do them standing on her head! FAMILY VALUES Dena is researching her family tree. UPSY DAISY These are so easy that Daisy can do them standing on her head! FAMILY VALUES Dena is researching her family tree.

Help her to figure out how old her relatives will be when she is 18, and some other questions that she wants to answer. MATCHING PAIRS Each large square should contain two matching pairs of smaller squares. They can be any way up. Which small square is not needed to complete the patterns? IN THE KITCHEN LEAP PAD Use your finger to find the lily pads that Freda can hop across that are not divisible by 3. Deck the Halls The members of the Number Club are decorating their clubhouse. They want each banner to have six different numbers.

Make one cut in each banner and retie the strings so that no banner has the same number twice. SNAKES ALIVE! Study the snake shapes. How many more snakes need to join in to make the next two patterns in the sequence? How many snakes would there be if all five patterns were laid out together in full? RIGHT ON CUE Aaron, Bubba, Becca, and Maddie are playing pool. What is the highest number they can make by lining up all the balls on the table? BRAIN FOOD Alien Encounter Figure out which alien is the biggest by doing these calculations. Start with the problems in the parentheses each time. Get It Right! Ari wants to eat salmon and ginger, but not puffer fish.

Which set menu should he choose?