More Arithmetic: % and **
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Does % return the remainder of a division?
2. Does ** raise a number to a power?
3. Is ^ used for exponents in JavaScript?
4. Can % be used to check if a number is even?
5. Is 'mod' a valid JavaScript operator for remainder?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 110 % 3 | AWrong - use ** instead of ^ for exponents | |
| 22 ** 4 | BRaises 2 to the power of 4 | |
| 3Checks if a number divides evenly with no remainder | CWrong - use % instead of the word mod | |
| 4Multiplies a number by itself repeatedly | Dnum % 2 === 0 | |
| 5console.log(10 mod 3); | EReturns the remainder after dividing 10 by 3 | |
| 6console.log(2 ^ 4); | F3 ** 3 |
C
Definitions
%
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
console.log(10 _ 3);
2.
console.log(2 __ 4);
3.
let remainder = 7 _ 2;
4.
let cube = 3 __ 3;
5.
let isEven = num _ 2 === 0;
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
console.log(10 mod 3);
B
console.log(10 % 3);
C
console.log(2 ** 4);
Question 2
A
console.log(2 ^ 4);
B
console.log(2 ** 4);
C
console.log(10 % 3);
Question 3
A
let r = 9 % 4;
B
let s = 9 // 4;
C
let p = 2 ** 3;
Question 4
A
let x = 5 % 2;
B
let w = 5 pow 2;
C
let z = 5 ** 2;
Question 5
A
let a = 8 % 3;
B
let b = 8 ** 2;
C
let c = 8 %% 3;
Answer Key
More Arithmetic: % and **
Section A: Quick Questions
Q1
B — Yes
Q2
A — Yes
Q3
A — No
Q4
A — Yes
Q5
B — No
Section B: Match the Pairs
Q1
10 % 3 → Returns the remainder after dividing 10 by 3
Q2
2 ** 4 → Raises 2 to the power of 4
Q3
Checks if a number divides evenly with no remainder → num % 2 === 0
Q4
Multiplies a number by itself repeatedly → 3 ** 3
Q5
console.log(10 mod 3); → Wrong - use % instead of the word mod
Q6
console.log(2 ^ 4); → Wrong - use ** instead of ^ for exponents
Section C: Definitions
Q1
% — An operator that returns the remainder left over after dividing one number by another.Section D: Fill in the Blanks
Q1
console.log(10 % 3);Q2
console.log(2 ** 4);Q3
let remainder = 7 % 2;Q4
let cube = 3 ** 3;Q5
let isEven = num % 2 === 0;Section E: Spot the Error
Q1
A — Use %, not the word mod, for the remainder operator.
Q2
A — JavaScript uses ** for exponents, not ^.
Q3
B — Remainder uses %, not //, in JavaScript.
Q4
B — Exponents use **, not the word pow, in JavaScript.
Q5
C — The remainder operator is a single %, not %%.