Page 90 - Start Up Mathematics_3

Example 6: There are 63 bells. If each Christmas tree is to be decorated with 3 bells,
how many Christmas trees are required?

Solution: In 63 ÷ 3, the number of tens is 6. Since, 6 is greater than the divisor
3, the division has to be done in steps. First divide the tens and then
the ones.
2
3 63 Step 1: Start from the tens place of the dividend.

– 6 6 tens ÷ 3 = 2 tens

0
Write 2 in the tens place of the quotient.
Subtract 6 from the tens place of the dividend.

6 – 6 = 0
2
3 63 Step 2: Bring down the ones digit (i.e., 3) of the dividend.
– 6↓

03

21

3 63 Step 3: 3 ones ÷ 3 = 1 one
– 6↓

03 Write 1 in the ones place of the quotient.
– 3 Subtract 3 from the ones place of the dividend.

0 3 – 3 = 0

So, 21 Christmas trees are required. Remember

Check: Here, dividend = 63, divisor = 3, When we divide a 2-digit
quotient = 21, remainder = 0 number by a 1-digit
number, we can get a
(Divisor × Quotient) + Remainder quotient which is either

= (3 × 21) + 0 = 63 + 0 = 63 = Dividend a 1-digit number or a
2-digit number.
Thus, the division is correct.

Example 7: Divide 93 by 2 and check your answer.

Solution: 46
2 93 Check: 93 ÷ 2 = 46, remainder = 1 Remember
– 8↓
(Divisor × Quotient) + Remainder Remainder
13
– 12 = (2 × 46) + 1 = 92 + 1 = 93 should always
be less than the
01 = Dividend divisor.
Thus, the division is correct.

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