Multiplication, Division, and Operations
BODMAS
Problem Solving
Word Problems with Estimation and Approximation
Mystery!
100

Subtract 863 from 1,245

382

100

(7 + 5) × (12 - 3) 

96

100

If I buy 5 chocolates, give 4 away. How many do I have left?

1

100

Which symbol means "approximately equal to"

= or ≈

100

20 + (4 × 5) - 10

30

200

Write the number 12,984,672 in expanded form and identify the value of the digit 9 in this number.

10,000,000 + 2,000,000 + 900,000 + 80,000 + 4,000 + 600 + 70 + 2 

200

180 ÷ 9 + (6 × 3)

38

200

I buy 3 pizzas, each with six slices for my party. If There are 9 people at my party who share the pizzas equally, how many slices will each person get?

2

200
If rounding to the nearest hundred, do I round 586 to 600 or 500?

600

200

Is 0.583635 a whole number?

No, it's a decimal! 

300

What is the value of the digit 7 in the number 742,589?

700,000

300

(36 + 48) ÷ (8 × 6) + (100 - 25)

13

300

Emma has 3 boxes of apples. Each box contains 124 apples. She gives away 256 apples to her friends. How many apples does Emma have left? 

116 apples left

300

Estimate the total cost of buying 49 items that cost $8.99 each. Round the price to the nearest dollar before calculating.

49 × 9 ≈ $441

300

(45 × 13) - (8 × 15) + 42 ÷ 7 

558

400

Round 5,678,391 to the nearest million.

6,000,000

400

200 - (15 × 3) + (24 ÷ 6) × 4

164

400

A factory produces 1,238 units of product each day. If the factory runs for 9 days, estimate the total production by rounding both numbers and multiplying.

1,200 × 10 = 12,000 units

400

A school is planning a concert. The budget for decorations is $3,450, the sound system costs $1,125, and food for refreshments costs $2,380. After adding an extra $500 for miscellaneous costs, how much total money will be needed?

$7,455

400

Multiply 827 by 34

28,118

500

Estimate the product of 9,873 and 2,489 by rounding both numbers to the nearest thousand.

10,000 × 2,000 = 20,000,000

500

320 ÷ (16 - 4) + 9 × (8 + 2) - 15 

87

500

A shopper buys 5 items, each costing $63.75. She uses a coupon that gives her 15% off. After using the coupon, she pays a sales tax of 8% on the discounted total. How much does she pay in total?

Total: $324.83 

500

A laptop is priced at $2,599. The store offers a 20% discount. After applying the discount, a sales tax of 8% is added. What is the final price after discount and tax?

Final price: $2,309.76 

500

TRUE OR FALSE: CUBES helps us understand worded questions

TRUE