Singapore 4th Grade Math Worksheet: 11 Decimals Name: Date: Math Question 1 Donald needed some animals to pull his sled. He went to the Ice Queen's shop and bought 4 white wolves and 6 strong yetis. Each wolf cost $3.20. Each yeti cost $1.90 less than each wolf because the yetis were lazy. How much did Donald pay in total to the Ice Queen? Math Question 2 I woke up this morning with 7 naughty imps and 5 mischievous gnomes sitting on my stomach. I threw them out the window. Each gnome weighed 3.25 kg. Each imp weighed 1.55 kg more than each gnome. What was the total weight of the imps and gnomes that I flung out the window?
Math Question 3 Evil Wally Vampire kidnapped 8 old ladies and 4 old men from a retirement home and brought them to his castle. He threw a party and shared the blood of the old folk with his friends. Each old lady had 4.6 liters of blood in her. Each old man had 1.28 liters more blood than each lady. Wally and his friends drank all the blood. How much blood did they drink altogether? Math Question 4 7 brothers and 9 sisters were on a rickety boat in the sea. A ferocious shark bumped into the boat and sank it. The desperate brothers each swam 6.38 km before they were devoured by the shark. The frantic sisters each swam 3.08 km more than each brother before they were saved by some mermaids who killed the ravenous shark with their harpoons. What was the total distance swum by the unlucky brothers and lucky sisters?
Math Question 5 Alice bought 2 beautiful tiny horses from a gypsy. The horses were sold at 70 per kg. The white horse weighed 4.7 kg and the piebald horse weighed 6.3 kg. Alice gave the gypsy two $5-notes. How much change did she receive? Math Question 6 Mokhtar and his wife had to fly to Baghdad in a hurry. They went to a shop and bought two flying carpets. The carpets cost 80 per meter. The red carpet was 8.5 m and the blue carpet was 3.6 m. Mokhtar gave the shopkeeper two $5-notes. How much change did he receive?
Math Question 7 A skyscraper caught fire in Elm Street. The firefighters arrived at the scene promptly but had forgotten to get a tall ladder to climb the building. A smart firefighter rushed to a nearby pet shop and bought three agile orangutans to climb the building and save the desperate people. The orangutans were sold by height, in other words 60 per meter. The hairy orangutan was 2.9 m tall, the bald orangutan was 3.4 m tall, and the wooly orangutan was 7.6 m tall. The firefighter gave the shopkeeper five $2-notes. How much change did he receive? Math Question 8 Chef Chozoki made 9.6 liters of octopus eye soup, 7.3 liters of monkey brain soup and 8.4 liters of mermaid hair soup. He sold the soup for 90 per liter. I loved Chef Chozoki's cooking so I bought all his soup. If I gave him three $10-notes, how much change did he give me?
Math Question 9 Prince Paul walked into a pet shop and bought 8 pelicans and 11 eagles. Each pelican cost 50 and each eagle cost 70. If he gave the cashier three $5-notes, how much change did he receive? Math Question 10 My mother bought 6 packets of sugar. Each packet contained 2.7 kg of sugar. She used some of the sugar to bake 80 tadpole tail cakes for my birthday. Each cake needed 60 g of sugar. How much sugar did she have left after that?
Math Question 11 I found an old lamp in my basement yesterday. I rubbed it and a genie emerged. He gave me five $50-notes. I quickly went to a store and bought 4 camels that cost $2.60 each and 9 talking monkeys that cost $8.30 each. How much money did I have after that? Math Question 12 Shona's mother gave her seven $20-notes for being a good girl. Shona skipped over to a store and bought 5 wigs that cost $7.35 for her bald grandmother. She also bought 8 iron teeth that cost $9.62 for her toothless grandfather. How much money did she have after that?
Math Question 13 Adam felt like strangling his teenage neighbors. He could not stand the racket they were making with their electric guitars every night. He went to a pet shop and bought an anaconda for $16.40. He also bought a blood python that cost 6 times as much as the anaconda. He let loose the snakes in his neighbors' house at midnight. He slept peacefully every night after that. How much did he pay altogether for the snakes? Math Question 14 My brother wrestled with a gorilla yesterday. Unluckily, the gorilla pulled out his right arm and left leg. I immediately went to the doctor and bought a steel arm and a silver leg. The leg cost 5 times as much as the arm. If the arm cost $17.90, how much money did I give the doctor?
Math Question 15 Prince Peter was tired of listening to his Singapore math teacher droning on and on. He rode to Magician Melvin's shop on his white stallion and bought a cheeky demon that cost $13.35. He also bought a fierce ogre that cost 7 times as much as the demon. He let loose the demon and the ogre in class yesterday and was delighted when the two creatures dragged his screaming math teacher to hell. How much did Prince Peter pay Magician Melvin to solve his problem? Math Question 16 When I was scratching my itchy head yesterday, a flea and a louse fell out. I grabbed them, put them in a bottle and sold them to my best friend, Charlie Chimp. I sold the flea for $19.36. I sold the louse for 8 times the price of the flea because it had beautiful curly hair. How much money did I receive?
Math Question 17 Doreen bought a live turkey for Thanksgiving. The turkey didn't want to become Doreen's dinner so it grabbed an axe, chopped up Doreen and made 15.18 liters of soup with her body. The turkey poured the soup into 6 soup bowls and shared it with its friends on Thanksgiving Day. How much soup was in each soup bowl? Math Question 18 My sister shocked us all by giving birth to 9 hairy monsters who all weighed the same. If the total weight of the 9 squalling babies was 68.58 kg, what was the weight of each baby?
Math Question 19 Diana was swimming in the sea when suddenly a shark began to attack her. Luckily, 8 brave mermaids who weighed a total of 428 kg killed the shark by throwing seashells at it. What was the weight of each mermaid? Math Question 20 My grandfather had a 97.65 m strand of hair growing from his left nostril. My enterprising grandmother plucked out that hair, cut it into 7 equal pieces and knitted 7 comfortable sweaters for me. What was the length of hair she used for each sweater?
Answers Q1 - $20.60, Q2-49.85 kg, Q3-60.32 l, Q4-129.8 km Q5 - $2.30, Q6 - $0.32, Q7 - $1.66, Q8 - $7.23 Q9 - $3.30, Q10-11.4 kg, Q11 - $164.90, Q12 - $26.29 Q13 - $114.80, Q14 - $107.40, Q15 - $106.80, Q16 - $174.24 Q17-2.53 l, Q18-7.62 kg, Q19-53.5 kg, Q20-13.95 m