Large Numbers Around Us: common misconceptions

If your child says… “One lakh needs six zeroes.”

Ask together

After counting the 1, how many places remain?

What’s true

The six digits include the leading 1.

If your child says… “Ten centimetres longer means ten times as long.”

Ask together

How many shorter strips fit along the longer strip?

What’s true

A difference measures the extra length; division counts repeats.

If your child says… “Every comma separates three digits.”

Ask together

After the last three digits, how many places make the thousands group?

What’s true

Indian grouping uses three digits at the right, then two per group.

If your child says… “I can read the press count from the hundreds digit.”

Ask together

How many hundreds are inside the thousand?

What’s true

The thousands also contain hundreds.

If your child says… “A crore equals a million.”

Ask together

Which name sits beside one crore on the ladder?

What’s true

One crore equals ten million.

If your child says… “Rounding means changing the last digits to zeroes.”

Ask together

Which gap is smaller: 7,000 or 3,000?

What’s true

Compare the gaps to neighbouring multiples of the requested size.

If your child says… “I halve twelve and stop at six.”

Ask together

What operation is still waiting beside the six?

What’s true

The six still needs multiplying by ten.

If your child says… “Two two-digit numbers always give four digits.”

Ask together

How many digits does the included left endpoint have?

What’s true

The permitted range also includes three-digit answers.