1. Evaluate 3 + 4 × 2.
Use the calculator’s normal order of operations.
Enter the expression exactly as written. Multiplication is completed before addition.
Solution: 4×2=8, then 3+8=11.
Interactive practice sets
TI-30XS Calculator Practice Problems
Attempt each problem with the calculator, check your answer and reveal a hint or worked solution only when needed.
Set 1
3 problemsCalculator basics and fractions
2. Calculate 3/4 + 5/8.
You may enter a decimal, an improper fraction or a mixed number expression.
Use
frac(3,4)+frac(5,8) or type 3/4+5/8.Solution: 3/4=6/8, so 6/8+5/8=11/8=1 3/8=1.375.
3. Evaluate √144 + 2³.
Use
sqrt(144)+2^3.Solution: √144=12 and 2³=8, so the result is 20.
Set 2
3 problemsPowers, logarithms and scientific notation
4. Calculate 2¹⁰.
Type
2^10.Solution: 2 multiplied by itself ten times equals 1024.
5. Evaluate log(1000).
log is base 10.
Solution: 10³=1000, so log(1000)=3.
6. Divide 6.02 × 10²³ by 2.
Enter
6.02e23/2.Solution: 6.02÷2=3.01, so the result is 3.01×10²³.
Set 3
3 problemsTrigonometry and angle modes
7. In Degree mode, calculate sin(30).
Confirm DEG before entering the expression.
Solution: sin(30°)=1/2=0.5.
8. In Degree mode, calculate tan(45).
Use the tan key after confirming DEG.
Solution: tan(45°)=1.
9. In Degree mode, find asin(0.5).
Press 2nd and then sin.
Solution: The angle whose sine is 0.5 is 30°.
Set 4
3 problemsProbability and counting
10. Calculate 12 nCr 3.
Use the probability menu and choose Combination.
Solution: 12!/(3!9!)=220.
11. Calculate 7 nPr 3.
Use Permutation because order matters.
Solution: 7×6×5=210.
12. Calculate 5!.
Factorial means multiply 5×4×3×2×1.
Solution: 5!=120.
Set 5
3 problemsStatistics and function tables
13. Find the mean of 4, 6, 8, 8, 9.
Open Data and enter the five values.
Solution: The sum is 35 and 35÷5=7.
14. For f(x)=2x²−3, find f(4).
Use Table or substitute x=4 directly.
Solution: 2(4²)−3=32−3=29.
15. In Radian mode, calculate sin(π/6).
Confirm RAD and enter
sin(pi/6).Solution: π/6 radians equals 30°, so the sine is 0.5.
Continue practising on the calculator
Open the calculator in another tab or review the learning guide when a mode or key sequence is unclear.