mr barton maths

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Calculator Use – Basic

Select the skills to practice, and then click Go!

Foundational skills
Identify when brackets are needed for a fraction
\[ \frac{8}{3+1} \text{ needs brackets} \]
Recognise when a fraction needs brackets for correct calculator entry.
Identify when brackets are needed for a negative base
\[ (-3)^2 \text{ vs } -3^2 \]
Recognise that a negative base needs brackets before applying a power.
Interpret a standard form display
\[ 2.5 \times 10^{12} \rightarrow ? \]
Convert standard form display to an ordinary number.
Interpret a small number standard form display
\[ 4.2 \times 10^{-5} \rightarrow ? \]
Convert small standard form display to a decimal.
Interpret a surd display
\[ \sqrt{3} \rightarrow 1.732 \]
Convert calculator surd display to decimal.
Interpret a π display
\[ 12\pi \rightarrow 37.70 \]
Convert a multiple of π to a decimal.
Entering fractions
Calculate a simple fraction
\[ \frac{7}{8} = 0.875 \]
Enter a simple fraction with single values.
Calculate a fraction with expression in numerator
\[ \frac{15+9}{4} = 6 \]
Enter a fraction where the numerator needs brackets.
Calculate a fraction with expression in denominator
\[ \frac{24}{3+5} = 3 \]
Enter a fraction where the denominator needs brackets.
Calculate a fraction with expressions in both parts
\[ \frac{20-8}{9-3} = 2 \]
Enter a fraction where both parts need brackets.
Calculate a mixed number
\[ 2\frac{3}{4} = 2.75 \]
Enter a mixed number correctly.
Calculate a complex fraction
\[ \frac{3}{4} \div \frac{5}{8} \]
Enter a calculation involving division of fractions.
Powers and roots
Calculate a square
\[ 17^2 = 289 \]
Use the square button to find the square of a number.
Calculate a cube
\[ 7^3 = 343 \]
Use the cube button to find the cube of a number.
Calculate a higher power
\[ 3^7 = 2187 \]
Use the power button for powers greater than 3.
Calculate a square root
\[ \sqrt{196} = 14 \]
Use the square root button.
Calculate a cube root
\[ \sqrt[3]{512} = 8 \]
Use the cube root function.
Calculate an nth root
\[ \sqrt[4]{625} = 5 \]
Use the nth root function.
Calculate a power of an expression
\[ (4+3)^3 = 343 \]
Calculate a power where the base needs brackets.
Negative numbers
Enter a negative number
\[ -8 + 15 = 7 \]
Enter a negative number using the correct key.
Calculate a negative base squared
\[ (-6)^2 = 36 \]
Square a bracketed negative number.
Calculate a negative base cubed
\[ (-4)^3 = -64 \]
Cube a bracketed negative number.
Calculate with two negative numbers
\[ (-12) \div (-3) = 4 \]
Perform operations with two negative numbers.
Calculate a negative in a fraction
\[ \frac{-24}{8} = -3 \]
Enter a fraction with a negative numerator or denominator.
Special cases
Use the ANS function
\[ 15+23=38, \text{ then } \times 4 \]
Use the ANS button for multi-step calculations.
Timer (Optional)
Question