WALT solve word problems in a variety of ways

The Pocket Money Problem   Week 4 T1 2014

Now Shreya has turned 8 years old her parents said they would be giving her \$4.50 each week as pocket money because she did her chores so independently. She was very excited. She wants to save her money to buy a doll that costs \$54.00.

Questions:

1. How much money would she have after 5 weeks?

2. How much money would she have after 10 weeks?

Extra challenge:

3. How m

any weeks’ pocket money would she need to save to pay for the special doll she wants. The doll costs \$54.00.

 This is how I worked out how much Shreya would have after 5 weeks:\$4.50+\$4.50=\$9.00\$4.50+\$4.50=\$9.00\$9.00+\$9.00=\$18.00\$18.00+\$4.50=\$22.50

 After 10 weeks Shreya would have:\$45.00This is how I worked it out:\$22.50+\$22.50=\$45.00

Extra challenge:

 How many weeks’ pocket money would she need to save to pay for the special doll she wants. The doll costs \$54.00.This is how I worked it out:In 10 weeks she had \$45.00. In 12 weeks she has \$54.00. I did 10 weeks which is \$54.00 + 2 weeks which is \$9.00 so this = \$54.00.

I learned how to use a grid when problem solving

 Week 1 2 3 4 5 Pocketmoney \$4.50 \$9.00 \$13.50 \$18.00 \$22.50 + \$4.50 + \$4.50 + \$4.50 + \$4.50