Standard Form Arithmetic
The below QuickQuestion Interface © generates random questions on calculating with numbers in standard form.
Choose the maximum power for the numbers you want to generate (up to 20).
Decide which operation you would like to practice, or a selection of them.
Choose whether the powers should be positive, negative or both.
Finally, decide if you want whole numbers, or to use decimals to make it a bit more tricky.
When typing answers, an answer in standard form should be entered like "1.3436x10^3".
There is a 10QQI version of this activity.
Choose the maximum power for the numbers you want to generate (up to 20).
Decide which operation you would like to practice, or a selection of them.
Choose whether the powers should be positive, negative or both.
Finally, decide if you want whole numbers, or to use decimals to make it a bit more tricky.
When typing answers, an answer in standard form should be entered like "1.3436x10^3".
There is a 10QQI version of this activity.
Ideas for Teachers
The QQI activities are a great way to get all students working. Put random questions on the board, and then get students to answer them on mini-whiteboards. Once all students have answered, and held up their solutions (with working), reveal the answer to see if they were right. Discuss any misconceptions from the working they have shown, or if they have all got it correct, move on to another question (changing the options to make if more difficult if necessary).
The QQI activities are a great way to get all students working. Put random questions on the board, and then get students to answer them on mini-whiteboards. Once all students have answered, and held up their solutions (with working), reveal the answer to see if they were right. Discuss any misconceptions from the working they have shown, or if they have all got it correct, move on to another question (changing the options to make if more difficult if necessary).
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