Lesson 7- Dividing 3, 4 & 5-Digit Numbers By A 2-Digit Number
Objectives:
At the end of this lesson, students should be able to:
- Divide 3-digit numbers by a 2-digit number using long division.
- Divide 4-digit numbers by a 2-digit number using long division.
- Divide 5-digit number by a 2-digit number using long division.
When dividing by a 2 – digit divisor, the dividend is divided by taking 2 – digits at a time. Sometimes you may have to take 3 digits if the first two digits make a number that is less than the divisor.
Example 1
288 ÷ 12
Solution
Example 2
Example 3
2875 ÷ 25
Example 4
Divide 1260 by 60
Example 5
92690 ÷ 23
Example 6
Divide 17684 by 42.
Solution
Unit 7 Lesson 7: Exercise 1
Workout the following using long division.
- 352 ÷ 11
- 840 ÷ 20
- 450 ÷ 18
- 2875 ÷ 23
- 7755 ÷ 15
- 13512 ÷ 12
- 20670 ÷ 15
- 41327 ÷ 17
- 644 ÷ 23
- 6912 ÷ 32
1) 32 2) 42
3) 25 4) 125
5) 517 6) 1126
7) 1378 8) 2431
9) 28 10) 216
3) 25 4) 125
5) 517 6) 1126
7) 1378 8) 2431
9) 28 10) 216
Unit 7 Lesson 7: Exercise 2
- 225 ÷ 25
- 238 ÷ 34
- 12512 ÷ 34
- 1080 ÷ 45
- 1702 ÷ 37
- 3960 ÷55
- 42966 ÷ 62
- 28681 ÷ 23
- 390 ÷ 48
- 12522 ÷ 92
1) 9 2) 7
3) 368 4) 24
5) 46 6) 72
7) 693 8) 1247
9) 8r6 10) 136r10
3) 368 4) 24
5) 46 6) 72
7) 693 8) 1247
9) 8r6 10) 136r10
Unit 7 Lesson 7: Exercise 3
- 5546 ÷ 21
- 649 ÷ 13
- 16430 ÷ 37
- 5492 ÷ 27
- 36125 ÷ 15
- 9924 ÷ 24
- 12367 ÷ 40
- 36721 ÷ 45
- 69690 ÷ 29
- 21588 ÷ 43
1) 264r2 2) 49r12
3) 444r2 4) 203r11
5) 2408r5 6) 413r12
7) 309r7 8) 816r1
9) 2403r3 10) 502r2
3) 444r2 4) 203r11
5) 2408r5 6) 413r12
7) 309r7 8) 816r1
9) 2403r3 10) 502r2