Multiplication with Two-Digit Multiplier

1. Mathematics 4

2. Multiplication
of Numbers

3. What is
Multiplication?

4. Multiplication
- a way of adding the same
number several times.
- also called as repeated
addition.

5. 9 X 9 = N

6. 6 X 7 = N

7. 8 X 7 = N

8. 9 X 8 = N

9. 9 X 8 = 72

10. 9 X 8 = 72
Number Sentence

11. Number Sentence
is also called
equation.

12. 9 X 8 = 72

13. 9 X 8 = 72
Multiplicand

14. 9 X 8 = 72
Multiplicand Multiplier

15. 9 X 8 = 72
Multiplicand Multiplier Product

16. How to multiply
numbers with
two-digit multipliers?

17. Find the product:
241 X 42 = N

18. Step 1:
Multiply by
ones digit of
the multiplier
first.
241
X 22

19. 241
X 22
482
1. 2x1=2
2.2x4=8
3.2x2=4

20. Step 2:
Next, multiply
by the tens
digit of the
multiplier.
241
X 22

21. 241
X 22
482
4820
1. 2x1=2
2.2x4=8
3.2x2=4

22. Step 3:
Then, add the
partial products
to get the final
product.

23. 241
X 22
482
+ 4820
Partial
Product

24. 241
X 22
482
+ 4820
5302
Partial
Product

25. 432 x 23=N

26. 432
X 23
1,296

27. 432
X 23
1,296
+ 8,640

28. 432
X 23
1,296
+ 8,640
9,936

29. Multiplication with
Regrouping

30. Find the product:
654 x 45 = N

31. 654
X 45

32. 2 2
654
X 45
3270

33. 2 1
2 2
654
X 45
3270
+ 26160

34. 2 1
2 2
654
X 45
3270
+ 26160
Partial
Product

35. 2 1
2 2
654
X 45
3270
+ 26160
29430
Partial
Product

36. Find the product:
792 x 69 = N

37. 792
X 69

38. 8 1
792
X 69
7128

39. 5 1
8 1
792
X 69
7128
+ 47520

40. 5 1
8 1
792
X 69
7128
+ 47520
Partial
Product

41. 5 1
8 1
792
X 69
7128
+ 47520
54648
Partial
Product

42. Mathematics 4