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Whole Number Operations

Next set of video math lessons in this series.

#### Singapore Maths: Primary 5 - Whole Numbers, Word Problem Q1

Learn how to use models (tape diagrams) to understand and solve word problems on whole numbers.

Example: A T-shirt costs $19 and a skirt costs 3 times as much. If Annie is left with $24 after paying for the T-shirt and the skirt, how much money had she at first?
#### Singapore Math: Primary 5 - Whole Numbers, Word Problem Q2

How to use models to understand and solve word problems on whole numbers.

Example: Ben had $15. After paying for 3 cards and some stamps, he had $3 left. If each card costs $2 and each stamp costs $1, find the number of stamps he bought.

#### Singapore Math: Primary 5 - Whole Numbers, Word Problem Q3

Understand and solve word problems on whole numbers using the popular Singapore model method

Charlie bought a board game at $7 off. He also bought a water shooter and paid $41 altogether. What was the original price of the board game if, before discount, it costs 5 times as much as the water shooter?
#### Singapore Maths: Primary 5 - Whole Numbers, Word Problem Q4

Learn how to use models to understand and solve word problems on whole numbers.

Example: Dave and Eli bought some DVDs and paid $96 altogether. If Eli bought 10 more DVDs than Dave and paid $20 more than him, find the number of DVDs that Dave bought.

Whole Number Operations

Next set of video math lessons in this series.

Examples, solutions, and free lessons on how to solve whole number word problems using the math models (tape diagrams/block models) taught in Singapore Math.

Example: A T-shirt costs $19 and a skirt costs 3 times as much. If Annie is left with $24 after paying for the T-shirt and the skirt, how much money had she at first?

Example: Ben had $15. After paying for 3 cards and some stamps, he had $3 left. If each card costs $2 and each stamp costs $1, find the number of stamps he bought.

Charlie bought a board game at $7 off. He also bought a water shooter and paid $41 altogether. What was the original price of the board game if, before discount, it costs 5 times as much as the water shooter?

Example: Dave and Eli bought some DVDs and paid $96 altogether. If Eli bought 10 more DVDs than Dave and paid $20 more than him, find the number of DVDs that Dave bought.

Next set of videos in this series

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