Answers to the sample questions
1. (8+4) x 4 - (70 ÷ 7) =
Step 1: Solve the brackets so 8 + 4 and 70 ÷ 7: (12) x 4 – (10) =
Step2: Do the multiplication 12 x 4: 42 – 10 =
Step 3 Subtract: = 32
2. (40 + 2) ÷ (12- 5) x 32 =
Step 1: Solve the brackets 40 + 2 and 12 -5: (42) ÷ (7) x 32
Step 2 Divide and multiply from left to right. 6 x 32 = 192
3. 6 x (3 x 2 ) + 14 – 40 =
Step 1 solve the brackets 3 x 2: 6 x (6) + 14 -40 =
Step 2 multiply: 6 x 6: 36 + 14 – 40
Step 3 add and subtract from left to right: 50 – 40 = 10
4. 7 x 5 – ( 14 – 3) =
Step 1 solve the brackets 14 – 3: 7 x 5 – (11) =
Step 2 multiply 7 x 5: 35 – 11 =
Step 3 subtract 35 – 11 = 24
5. 6 x 4 ÷ 8 + 60 ÷ 10 =
Step 1 multiply and divide 6 x 4 = 24: 24 ÷ 8 + 60 ÷ 10
Divide 24 ÷ 8 = 3 so 3 + 60 ÷ 10 =
Divide 60 ÷ 10 = 6 so 3+ 6 =
Step 2 Add. 3 + 6 = 9
Word questons, get the exact answer
You are off to the mall to buy some clothes. You buy a shirt costing $12.95, some lunch at $4.65, a backpack costing $42.99 and a pack of gum for 89 cents. How much money have you spent in total?
Answer: Add the totals 12.95 + 4.65 + 42.99 + 0.89 = $61.48
7. You are painting the walls in your bedroom. Two of the walls are 2.5m long, while two of the walls are 4.3m long. All of the walls are 2.3m tall. If you know that the area of a wall is length x height, what is the total area in m that you are going to paint?
Answer: two walls = 2.5 x 2.3 = 5.75m per wall so 11.5m in total.
Two walls equal 4.3 x 2.3 = 9.89m per wall so 19.78m in total. Add these together to get 31.28m in total for all four walls.
Word questions, estimate the answer only. (remember think happy numbers!)
You are throwing a surprise birthday party for your best friend. You've invited 20 people and plan for everyone to show. Now you are going to buy 8 bags of chips at $2.09, a package of party hats for $3.96 and a new dance CD to listen to for $12.49. How much money do you need to bring with you remembering that if you don't bring enough money you can't buy everything.
$2.09 is close to $2.10 x 8 = $16.80
$3.96 is close to $4.00
$12.49 is close to $12.50
Add them together to get $33.30 dollars
Need to bring a minimum of $33.30. If you estimated upto $35 and you showed the numbers that you used you would be correct!
Alternate answer
$2.09 is close to $2.25 (extremely happy number) x 8 = $18
$3.96 is close to $4.00
$12.49 is close to $13.00
Total is $35.00
Good luck tomorrow everyone!
Step 1: Solve the brackets so 8 + 4 and 70 ÷ 7: (12) x 4 – (10) =
Step2: Do the multiplication 12 x 4: 42 – 10 =
Step 3 Subtract: = 32
2. (40 + 2) ÷ (12- 5) x 32 =
Step 1: Solve the brackets 40 + 2 and 12 -5: (42) ÷ (7) x 32
Step 2 Divide and multiply from left to right. 6 x 32 = 192
3. 6 x (3 x 2 ) + 14 – 40 =
Step 1 solve the brackets 3 x 2: 6 x (6) + 14 -40 =
Step 2 multiply: 6 x 6: 36 + 14 – 40
Step 3 add and subtract from left to right: 50 – 40 = 10
4. 7 x 5 – ( 14 – 3) =
Step 1 solve the brackets 14 – 3: 7 x 5 – (11) =
Step 2 multiply 7 x 5: 35 – 11 =
Step 3 subtract 35 – 11 = 24
5. 6 x 4 ÷ 8 + 60 ÷ 10 =
Step 1 multiply and divide 6 x 4 = 24: 24 ÷ 8 + 60 ÷ 10
Divide 24 ÷ 8 = 3 so 3 + 60 ÷ 10 =
Divide 60 ÷ 10 = 6 so 3+ 6 =
Step 2 Add. 3 + 6 = 9
Word questons, get the exact answer
You are off to the mall to buy some clothes. You buy a shirt costing $12.95, some lunch at $4.65, a backpack costing $42.99 and a pack of gum for 89 cents. How much money have you spent in total?
Answer: Add the totals 12.95 + 4.65 + 42.99 + 0.89 = $61.48
7. You are painting the walls in your bedroom. Two of the walls are 2.5m long, while two of the walls are 4.3m long. All of the walls are 2.3m tall. If you know that the area of a wall is length x height, what is the total area in m that you are going to paint?
Answer: two walls = 2.5 x 2.3 = 5.75m per wall so 11.5m in total.
Two walls equal 4.3 x 2.3 = 9.89m per wall so 19.78m in total. Add these together to get 31.28m in total for all four walls.
Word questions, estimate the answer only. (remember think happy numbers!)
You are throwing a surprise birthday party for your best friend. You've invited 20 people and plan for everyone to show. Now you are going to buy 8 bags of chips at $2.09, a package of party hats for $3.96 and a new dance CD to listen to for $12.49. How much money do you need to bring with you remembering that if you don't bring enough money you can't buy everything.
$2.09 is close to $2.10 x 8 = $16.80
$3.96 is close to $4.00
$12.49 is close to $12.50
Add them together to get $33.30 dollars
Need to bring a minimum of $33.30. If you estimated upto $35 and you showed the numbers that you used you would be correct!
Alternate answer
$2.09 is close to $2.25 (extremely happy number) x 8 = $18
$3.96 is close to $4.00
$12.49 is close to $13.00
Total is $35.00
Good luck tomorrow everyone!
posted by Mr. Reece at
6:30 PM
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