One More, One Less: 0-30

This interactive excel sheet is aimed at Year One students and explores counting, addition and subtraction.

The first sheet generates a starting number of objects, students then have to add objects one at a time to reach a target number.

In the second sheet students have to complete either an addition or subtraction sum by selecting values from a bank of possible answers.

In the third sheet students have to make a series of sums that all make a target number, and place them on a ‘tree’.

The fourth sheet generates a sequence of questions looking at doubling. Students have to add a number to itself. In the following sheet students have to add two numbers that are similar in value.

In the sixth sheet students explore different combinations when adding three values together to make a target number. In the following sheet two subtractions are made instead. In the next sheet students have to make the target number using one subtraction and one addition.

In the ninth sheet students have to answer a range of questions of the form “What is 1 more than…” There are four possible answers to choose from. The following sheet students are asked to either add or subtract ten from a range of values.

The last sheet explores counting on in ones, twos or tens. Students have to highlight the final value when counting up from a randomly generated starting point in a 10x10 number grid.

Note:
This program was designed to be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on the users machine.