Search Results For “thinking of a number”

Add a multiple of 10 to a 3-digit number, crossing 100.

Subtract a multiple of 10 from a 3-digit number, with base 10 blocks. No exchange needed.

Subtract a multiple of 10 from a 3-digit number, with no exchange needed.

Subtract a multiple of 10 from a 3-digit number. Exchange from hundreds to tens needed.

Subtract a multiple of 10 from a 3-digit number, with no additional help.

Subtract a 2-digit number not crossing the tens with a bar model to help.

Subtract a single digit from a 2-digit number up to 20.

Subtract a 2-digit number not crossing ten.

Using knowledge of number of days in the months of the year.

Complete the missing numbers with numbers up to and across 100.

More counting to 20 on a spiral.

More counting to 20 on a spiral with butterflies.