Home Math Division utilizing Reverse Multiplication | Multiplication Desk

### Division utilizing Reverse Multiplication | Multiplication Desk

We are going to discover ways to do division utilizing reverse multiplication.

1. Allow us to divide 6 by 2.

 Recall the multiplication desk of two. What number of twos are 6? 3 twos are 6. As 3 × 2 = 6, 6 ÷ 2 = 3. Recall 1 × 2 = 2 2 × 2 = 4 3 × 2 = 6 4 × 2 = 8 5 × 2 = 10

2. Divide 20 by 5.

 Recall the multiplication desk of 5. What number of fives are 20? 4 fives are 20. As 4 × 5 = 20, 20 ÷ 5 = 4. Recall 1 × 5 = 5 2 × 5 = 10 3 × 5 = 15 4 × 5 = 20 5 × 5 = 25

3. Divide 30 by 5.

 Recall the multiplication desk of 5. What number of fives are 30? 6 fives are 30. As 6 × 5 = 30, 30 ÷ 5 = 6. Recall 1 × 5 = 5 2 × 5 = 10 3 × 5 = 15 4 × 5 = 20 5 × 5 = 25 6 × 5 = 30 7 × 5 = 35 8 × 5 = 40

Questions and Solutions on Division utilizing Reverse Multiplication:

1. Fill within the blanks.

(i) If 6 × 2 = 12 then 12 ÷ 2 = _____

(ii) If 1 × 10 = 10 then 10 ÷ 10 = _____

(iii) If 8 × 2 = 16 then 16 ÷ 2 = _____

1. (i) 6

(ii) 1

(iii) 8

2. Recall multiplication tables to divide the next.

(i) 8 ÷ 2 = _____

(ii) 6 ÷ 1 = _____

(iii) 18 ÷ 2 = _____

(iv) 15 ÷ 5 = _____

(v) 20 ÷ 10 = _____

(vi) 20 ÷ 5 = _____

(vii) 10 ÷ 5 = _____

(viii) 18 ÷ 2 = _____

2. (i) 4

(ii) 6

(iii) 9

(iv) 3

(v) 2

(vi) 4

(vii) 2

(viii) 9

3. Full the desk.

 (i) 7 × 2 = 14 14 ÷ 2 = 7
 (ii) 6 × 1 = _____ 6 ÷ 1 = _____
 (iii) 8 × 2 = _____ 16 ÷ 2 = _____
 (iv) 2 × 5 = _____ 10 ÷ 5 = _____
 (v) 3 × 8 = _____ 24 ÷ 8 = _____
 (vi) 4 × 5 = _____ 20 ÷ 5 = _____
 (vii) 2 × 10 = _____ 20 ÷ 10 = _____
 (viii) 9 × 2 = _____ 18 ÷ 2 = _____

3. (ii) 6; 6

(iii) 16; 8

(iv) 10; 2

(v) 24; 3

(vi) 20; 4

(vii) 20; 2

(viii) 18; 9

4. Fill within the blanks

(i) If 5 × 5 = 25, then 25 ÷ 5 = _____

(ii) If 10 × 2 = 20, then 20 ÷ 2 = _____

4.  (i) 5

(ii) 10

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