WALT: solve maths problems using the most efficient strategies that I know.
Success Criteria: to be successful I must:
Read the problem carefully.
Understand the problem, by identifying key words.
Come up with the right equation.
Choose the most efficient strategy.
Show my working.
Check my answers.
Sally wanted to save money to buy a new outfit. Sally saved $24.60 in May, $28.50 in June and $20.70 in July. However, she also had to spent $17.00 on school supplies and $44.10 on her dog. If the outfit costs $119.80, how much money does Sally still need to save?
Read the problem carefully.
Understand the problem, by identifying key words.
Come up with the right equation.
Choose the most efficient strategy.
Show my working.
Check my answers.
Sally wanted to save money to buy a new outfit. Sally saved $24.60 in May, $28.50 in June and $20.70 in July. However, she also had to spent $17.00 on school supplies and $44.10 on her dog. If the outfit costs $119.80, how much money does Sally still need to save?
28.50
+24.60
20.70
73.80
- 17.00
56.80
- 44.10
12.70
119.80
- 12.70
107.10
Sally still needs $107.10, in order to buy that outfit.
John wants several different color plates for his birthday. John wants to get 96 black plates, 108 orange plates, and some amount of yellow plates. In total, John wants 324 plates, so how many yellow plates should he get?
108 + 90 =
198 + 6 =
204
324
- 204
120
John should get 120 yellow plates for his birthday.
For lunch, John bought a glass of juice for $1.60, a tuna sandwich for $5.00, as well as some sherbert for $2.90. The tax came out to $1.10, and John paid with $16.00. How much change should John receive?
For lunch, John bought a glass of juice for $1.60, a tuna sandwich for $5.00, as well as some sherbert for $2.90. The tax came out to $1.10, and John paid with $16.00. How much change should John receive?
1.60
+5.00
2.90
9.50
+1.10
10.60
16.00
-10.60
05.40
John should receive $5.40 as his change.
For lacrosse season, Mike decided to buy a ball for $9.00, new shorts for $25.80, as well as a pair of lacrosse shoes for $48.70. Mike currently has $29.60, and a coupon for $11.00 off his purchase. How much more money does Mike need to complete his purchase?
For lacrosse season, Mike decided to buy a ball for $9.00, new shorts for $25.80, as well as a pair of lacrosse shoes for $48.70. Mike currently has $29.60, and a coupon for $11.00 off his purchase. How much more money does Mike need to complete his purchase?
9.00
+25.80
48.70
83.50
29.60
+11.00
40.60
83.50
- 40.60
42.90
Mike needs $42.90 to complete his purchase.
Melanie has $12.00 in her bank account. Her sister has 4$24.00 in her bank. Melanie withdrew her money and she wanted it all in 50 cents. How many 50 cents did Melanie get.
Melanie has $12.00 in her bank account. Her sister has 4$24.00 in her bank. Melanie withdrew her money and she wanted it all in 50 cents. How many 50 cents did Melanie get.
0.50=1, 1.00=2, 1.50=3, 2.00=4, 4.00=8, 8.00=16, 12.00=24.
24.00
12.00 ÷ 0.50 = 24
Melanie received 24 50 cents.
Sam works seven days a week. He works from 8 o’clock in the morning until 8 o’clock in the evening. How many hours does Sam work for in one week?
Sam works seven days a week. He works from 8 o’clock in the morning until 8 o’clock in the evening. How many hours does Sam work for in one week?
Sam works for = 7 days
Each day he works = 12 hours
12
x 7
84
Sam works 84 hours in one week.
There were a total of twenty-one football games during the three month season, and eight are played at night. If the games are equally divided, how many football games are played a month?
There were a total of twenty-one football games during the three month season, and eight are played at night. If the games are equally divided, how many football games are played a month?
21 ÷ 3 = 7
7 football games are played in a month.
A restaurant sold forty-nine salads and fourteen pies last week. How many salads on average were sold each day?
A restaurant sold forty-nine salads and fourteen pies last week. How many salads on average were sold each day?
They sold = 49 salads in a week
In one week there are = 7 days
49 ÷ 7 = 7
On average, 7 salads were sold each day.
