10 and 1 More/Less

Worksheet Description

This worksheet presents an activity where students practice basic arithmetic by identifying numbers that are one more, one less, ten more, and ten less than the given numbers. Each number is situated within a block that is part of a larger structure resembling a ladder, with spaces to the left and right for the ‘one less’ and ‘one more’ numbers, and spaces above and below for ‘ten less’ and ‘ten more’ numbers, respectively. An example at the top of the worksheet shows how to fill in the blanks for the number 64. The students are instructed to fill in all the blocks corresponding to each starting number according to these rules.

The worksheet is designed to teach students the concept of incremental arithmetic, specifically focusing on the immediate numbers that precede and succeed a given number by one and ten. It reinforces the students’ understanding of number sequence and place value. This activity also serves to enhance mental calculation skills, as it requires students to add or subtract without the use of physical counting aids.