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Whole Number Operations

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#### Singapore Maths: Primary 5 - Whole Numbers, Word Problem Q13

Math word problems are not as difficult to solve as you might think. Check out this video and you will agree.

Example: A box contains 96 folders. A bookstore keeper bought 32 boxes and divided the folders into packs of 10. If he sold each pack for $7 and the remaining folders for $1 each, find the sum of money that the bookstore keeper got.
#### Singapore Maths: Primary 5 - Whole Numbers, Word Problem Q14

Solving mathematics word problems is easy. Use models to understand, visualize and solve problems.

Example: Mei had 14 rubber bands before she found a packet containing some rubber bands. She and her 5 friends then shared the rubber bands equally among themselves. If Mei has 19 rubber bands mow, how many rubber bands did the packet have?

#### Singapore Mathematics: Primary 5 - Whole numbers, Word Problem Q15

Use models to understand, visualize and solve problems.

Example: Jeremy had 3 times as much money as Ryan. After Jeremy bought a camera for $179 and Ryan bought a jersey for $38, Ryan had 2 times as much money as Jeremy. How much money had Jeremy at first?
#### Singapore Math: Primary 5 - Whole Numbers, Word Problem Q16

Learn models to solve math word problems

Example: 130 children and 110 adults took a Ferris wheel ride. If a child ticket cost $9 and an adult ticket cost $16, how much money was collected by the Ferris wheel operator?

Whole Number Operations

Previous set of video math lessons in this series.

Next set of video math lessons in this series.

Free video lessons on how to solve whole number word problems using the math models (tape diagrams/block models) taught in Singapore Math.

Example: A box contains 96 folders. A bookstore keeper bought 32 boxes and divided the folders into packs of 10. If he sold each pack for $7 and the remaining folders for $1 each, find the sum of money that the bookstore keeper got.

Example: Mei had 14 rubber bands before she found a packet containing some rubber bands. She and her 5 friends then shared the rubber bands equally among themselves. If Mei has 19 rubber bands mow, how many rubber bands did the packet have?

Example: Jeremy had 3 times as much money as Ryan. After Jeremy bought a camera for $179 and Ryan bought a jersey for $38, Ryan had 2 times as much money as Jeremy. How much money had Jeremy at first?

Example: 130 children and 110 adults took a Ferris wheel ride. If a child ticket cost $9 and an adult ticket cost $16, how much money was collected by the Ferris wheel operator?

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