Negative Numbers Activities for Math Centers. Review adding and subtracting positive and negative integers: printables for starters, warm ups, or early finishers tasks. Word problem cards (16 cards – 8 at two levels), a 30-card ‘I have…Who has…?’ game, and 3 Hidden Word puzzles worksheets and answer keys.
An engaging alternative to standard worksheets. There’s one on increasing and decreasing temperature (Celsius), one for simple subtraction calculations with mostly negative number answers and a more challenging puzzle featuring addition and subtraction of negative and positive integers. Puzzles can be completed individually or in pairs / groups. Similar to codebreaker puzzles, a math-related word is revealed after completing calculations. Each puzzle contains a grid. Within each box is a calculation and a letter. Students circle boxes containing errors. Then they assemble the letters from the circled boxes to reveal a math word. There's a further challenge question / task at the bottom of the page linked to the word. Students often forget or avoid checking their work so it’s great to get them carefully checking in these puzzles. Spotting common errors may help them remember to check their own work.
‘I HAVE…WHO HAS…?’ CARDS / LOOP GAME
Fun group or whole class activity to consolidate adding and subtracting negative numbers, using phrases ('reduce by', 'increase', 'difference between' etc). Forms a continuous loop.
WORD PROBLEM CARDS
8 Multi-Step Word Problem Cards and 8 more simple versions of them. Answer sides can be printed back to back with the question side for student self-checking or can be printed and made into separate cards if required. Consolidates understanding of negative numbers in the contexts of temperature (degrees Celsius), money / bank accounts and points in a sporting league. They work well as early finisher challenges. The money cards feature dollars, therefore there is an additional set featuring UK pounds further on in the document.
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