Multiply by 1-Digit
Multiply by 2-Digit
Word Problems
Estimation
Error Analysis
100

What is 236 × 4?

944

100

Multiply: 162 × 24

3,888

100

A basket contains 325 apples. If there are 3 baskets, how many apples?

975

100

Estimate: 478 × 23 ≈ ?

500 × 20 = 10,000

100

Joan answered 543 × 5 = 2,715. Lily answered 543 × 5 = 52,70. Who is correct?

Joan

200

Multiply: 135 × 7

945

200

Each box has 125 pencils. The school bought 24 boxes. How many pencils are there?

3,000

200

A movie ticket costs ₱178. If 10 people buy tickets, how much is paid?

₱1,780

200

A bakery bakes 326 breads each day. In 29 days, estimate the total breads.

9,000

200

A student solved 324 × 16 = 5,184. Correct or wrong?

Correct

300

A ticket costs ₱178. If 8 people buy tickets, how much in total?

₱1,424

300

A library has 342 books in each shelf. There are 15 shelves. How many books in all?

5,130

300

A planetarium has 345 seats. If there are 4 sold-out shows, how many people will see the shows?

1,380

300

Each school uniform costs ₱956. If 48 uniforms are ordered, estimate the cost.

₱50,000

300

A student estimated 478 × 52 ≈ 400 × 60 = 24,000. Is this correct?

Wrong, correct estimate is 500 × 50 = 25,000

400

Multiply: 231 × 7

1,617

400

A toy factory makes 374 toys daily. In 25 days, how many toys are made?

9,350

400

A company sells 972 chairs. If each chair earns 23 reward points, how many points in total?

22,356

400

A company produces 584 bottles daily. In 19 days, estimate how many bottles are made.

≈ 12,000

400

If a student solved 135 × 7 = 755, what was the mistake?

Incorrect multiplication; correct is 945

500

A farmer packs 162 mangoes in each box. If there are 4 boxes, how many mangoes are there?

648

500

The school has 236 students in each grade level. If there are 14 grade levels, how many students are there in total?

3,304

500

Jacqueline reads 18 fun facts per day. In 365 days, how many fun facts?

6,570

500

Estimate: 478 × 52

500 × 50 = 25,000

500

If a student answered 236 × 4 = 936, what was the mistake?

Added incorrectly; correct is 944

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