Use Negative Numbers in Context and Calculate Intervals Across Zero 7 - Reasoning
Maths Resource Description
In this exercise, students are presented with a series of statements that involve negative numbers and are tasked with arranging the answers in ascending order, from the smallest to the largest. The first statement asks for the difference between -18 and -4, which is -14. The second statement requires finding the number halfway between 35 and -75, which is -20. The third statement seeks an even number that is less than -29 but greater than -32, the answer to which is -30. Lastly, the statement "four more than negative three" results in the answer 1. Therefore, the correct order from smallest to largest is: -30, -20, -14, 1.
To put these statements in the correct sequence, one must understand how to handle negative numbers and intervals across zero. The calculation for the halfway point between two numbers, including one that is negative, involves finding the average of the two numbers. For the difference between two negative numbers, subtraction is used, and for the last statement, simple addition is required. This exercise helps students to consolidate their understanding of negative numbers and the number line, reinforcing their skills in number and place value.