✖️ Multiplication

What your child will learn

• Students will be able to recall multiplication facts up to 10 × 10.
• Students will be able to multiply a 2-digit number by a 1-digit number using the standard algorithm with regrouping.
• Students will be able to multiply a 3-digit number by a 1-digit number using the standard algorithm with regrouping.
• Students will be able to multiply a 2-digit number by a 2-digit number using the standard algorithm (partial products).
• Students will be able to multiply a number by 10 and by 100.
• Students will be able to solve one- and two-step word problems involving multiplication.

Lessons in this unit

1. Tables up to 10: Recall multiplication facts up to 10 × 10 using skip counting, arrays, and patterns.
2. Multiply 2-digit by 1-digit: Multiply a 2-digit number by a 1-digit number using the standard algorithm with regrouping.
3. Multiply 3-digit by 1-digit: Multiply a 3-digit number by a 1-digit number using the standard algorithm with regrouping.
4. Multiply 2-digit by 2-digit: Multiply a 2-digit number by a 2-digit number using the standard algorithm with partial products.
5. Multiply by 10 and 100: Multiply any number by 10 and 100 by placing zeros at the end.
6. Word Problems: Solve one- and two-step word problems involving multiplication. Apply all previously learned skills.

Key words

multiplication

A quick way to add the same number many times. 4 × 3 means 4 groups of 3.

product

The answer you get when you multiply. In 4 × 3 = 12, the product is 12.

factor

The numbers you multiply together. In 4 × 3, 4 and 3 are factors.

array

Objects arranged in rows and columns. 3 rows of 4 dots is an array for 3 × 4.

multiply by 10

When you multiply a number by 10, you put a zero at the end. 7 × 10 = 70.

multiply by 100

When you multiply a number by 100, you put two zeros at the end. 7 × 100 = 700.

regroup

To carry over to the next place when a product is 10 or more. 6 × 4 = 24, write 4, carry 2.

Help your child at home

What to watch for

Multiplication always makes numbers bigger.

Help: Show that 1 × 5 = 5 (same) and 0 × 5 = 0 (smaller).

Multiply the tens first, then the ones.

Help: Always start with the ones place. 34 × 6: first 4 × 6 = 24, write 4, carry 2.

Multiply the hundreds first, then the tens, then the ones.

Help: Always start with the ones place. 245 × 3: first 5 × 3 = 15, write 5, carry 1.

When multiplying by the tens digit, you don't need to write a zero.

Help: 23 × 14: 23 × 1 ten = 23 tens = 230, so write a zero in the ones place.

Try this at home

• Skip count in 7s to find 6 × 7: 7, 14, 21, 28, 35, 42
• 34 × 6 (with carry)
• 245 × 3 (with carry)
• 23 × 14 (with partial products)

Quick questions to ask aloud

1. What is 7 × 8? (56 / 54 / 48 / 64)
   Show answer

   7 × 8 means 7 groups of 8. Skip count: 8, 16, 24, 32, 40, 48, 56. So the product is 56.
2. What is 23 × 4?
   Show answer

   Multiply ones: 3 × 4 = 12, write 2, carry 1. Multiply tens: 2 × 4 = 8, add carry 1 = 9. So 23 × 4 = 92.
3. What is 123 × 4?
   Show answer

   3 × 4 = 12, write 2, carry 1. 2 × 4 = 8, plus 1 = 9. 1 × 4 = 4. So 123 × 4 = 492.

Parent guide: how to help your child with Class 4 Maths

Free printable charts

• Table of 6: 6 × 1 to 6 × 12, a quick trick and practice. (Class 3–4 · ages 8–10, free PDF)
• Table of 7: 7 × 1 to 7 × 12, a quick trick and practice. (Class 3–4 · ages 8–10, free PDF)
• Table of 8: 8 × 1 to 8 × 12, a quick trick and practice. (Class 3–4 · ages 8–10, free PDF)
• Table of 9: 9 × 1 to 9 × 12, a quick trick and practice. (Class 3–4 · ages 8–10, free PDF)
• Table of 11: 11 × 1 to 11 × 12, a quick trick and practice. (Class 4–5 · ages 9–11, free PDF)
• Table of 12: 12 × 1 to 12 × 12, a quick trick and practice. (Class 4–5 · ages 9–11, free PDF)

All free printable charts

Frequently asked questions

What will my child learn in "Multiplication" (Class 4 Maths)?

Your child will be able to: recall multiplication facts up to 10 × 10.; multiply a 2-digit number by a 1-digit number using the standard algorithm with regrouping.; multiply a 3-digit number by a 1-digit number using the standard algorithm with regrouping.; multiply a 2-digit number by a 2-digit number using the standard algorithm (partial products).; multiply a number by 10 and by 100.; solve one- and two-step word problems involving multiplication..

How does MangoMindz teach "Multiplication"?

In 6 short parts (Tables up to 10, Multiply 2-digit by 1-digit, Multiply 3-digit by 1-digit, Multiply 2-digit by 2-digit, Multiply by 10 and 100, Word Problems). Each part has a picture-based lesson read aloud by Mango Teacher, a quick check, and a quiz built from common mistakes children make, with Mango, a study buddy, for questions.

How long does "Multiplication" take?

About 120 minutes in total, spread over 6 parts of 15–25 minutes each.

How can I help my child with "Multiplication" at home?

Work through a small example together, such as: Skip count in 7s to find 6 × 7: 7, 14, 21, 28, 35, 42; 34 × 6 (with carry). Then ask a quick question aloud: What is 7 × 8? (56 / 54 / 48 / 64)

What mistakes do children often make in "Multiplication"?

Multiplication always makes numbers bigger. Fix: Show that 1 × 5 = 5 (same) and 0 × 5 = 0 (smaller). Multiply the tens first, then the ones. Fix: Always start with the ones place. 34 × 6: first 4 × 6 = 24, write 4, carry 2. Multiply the hundreds first, then the tens, then the ones. Fix: Always start with the ones place. 245 × 3: first 5 × 3 = 15, write 5, carry 1.

Is "Multiplication" free on MangoMindz?

Yes. Every lesson part and quiz in "Multiplication" is free on MangoMindz, with no ads.