Question

Homework problem #7: 24567389+35432611=what there is soo much regrouping, could someone show me how to do it?

Answer 1

`24567389+35432611 =60000000`

Explanation:

Given

`24567389+35432611 =`

Required

Solve

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

The numbers in parentheses are carried from previous sum

Start from the right

`9 + 1 = 10 \to` Write 0, carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0

`8 + 1 + (1) = 10 \to` Write 0 carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0 0

`6 +3 + (1) = 10 \to` Write 0 carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0 0 0

`7+2 + (1) = 10 \to` Write 0 carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0 0 0 0

`6 +3 + (1) = 10 \to` Write 0 carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0 0 0 0 0

`5 +4 + (1) = 10 \to` Write 0 carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0 0 0 0 0 0

`4 +5 + (1) = 10 \to` Write 0 carry 1

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

0 0 0 0 0 0 0

`2 +3 + (1) = 6 \to` Write 6

2 4 5 6 7 3 8 9

+ 3 5 4 3 2 6 1 1

----------------------------

6 0 0 0 0 0 0 0

Hence:

`24567389+35432611 =6 0 0 0 0 0 0 0`