Multiplication: 4-digit × 3-digit
Times tables, × 10 and × 100, and long multiplication step by step. Read one part at a time and tap “I know this”. Then test yourself in the quiz.
Know it already? Jump straight to the quiz
What is multiplication?
Multiplication is repeated addition: 4 × 6 = 6 + 6 + 6 + 6 = 24. The answer is the product.
- × 10: move every digit one place left (add a 0): 37 × 10 = 370.
- × 100: two places: 37 × 100 = 3 700.
- Double and halve: 25 × 16 = 50 × 8 = 400.
Long multiplication
- Multiply by the units.
- Multiply by the tens (write a 0 first).
- Multiply by the hundreds (write two 0s first).
- Add the rows.
1 234 × 123: 1 234 × 3 = 3 702; 1 234 × 20 = 24 680; 1 234 × 100 = 123 400; total = 151 782.
Estimate first: 1 234 × 123 ≈ 1 200 × 120 = 144 000, so 151 782 makes sense.
Remember this and test yourself
- Multiplication is repeated addition; the answer is the product.
- × 10: one place left; × 100: two places.
- Long multiplication: units, tens (with a 0), hundreds (with two 0s), then add.
- Estimate to check.
Write these points in your book. Read them again the night before the test.
A zero for the tens, two zeros for the hundreds.
Important words
First say the answer yourself, then turn the card over.
Match column A to column B
Tap a word in column A, then its meaning in column B. You can also start in column B.
True or false?
Read the question and the answer. Is the answer right? Tap True or False.
Now the real quiz!
The quiz has many more questions on this topic. Every question shows straight away whether you are right and explains why.
Take the quiz: Multiplication: 4-digit × 3-digit- Let your child work the examples on paper and explain them to you.
- The ticks (“I know this”) are saved on this device only. We never ask for names or emails.
Follows CAPS for Grade 6 Mathematics. Always check your teacher’s notes and textbook too.