Edexcel GCSE Computer Science

3.1.4: understand how to perform binary arithmetic (add, shifts (logical and arithmetic)) and understand the concept of overflow

Keywords:

Data

Test your self on these keywords and definitions using the games below or Play random game

Keyword	Definition
arithmetic shift	moving binary values one or more bits to the left or right. The sign bit always stays the same.
binary addition	combining two binary values to calculate the sum
binary arithmetic	a mathematical calculation using 0s and 1s
logical shift	moving binary values one or more bits to the left or right, replacing bits on the other end with zeros. The sign bit is ignored.
overflow	when a number is calculated that is too big or too small to be stored with a given number of bits, the extra bits are lost.

All learning objectives

Keyword games:

BugZap

Connect the wires to complete the circuit and zap the bug. The faster you choose the right keyword, the more points you get for zapping the bug!

Crossword

Use the clues to guess the keywords and fill in the blank spaces on the crossword

Eliminate

Click on the keywords that do not match the definition

Flappy Word

Click to jump. Collect a letter each time you pass a pipe

Hangman Definitions

Guess the letters of the definition

Hangman Keywords

Guess the letters of the keyword

Jumble Keyword

Rearrange the letters of the keyword into the right order

Random

Choose a game at random

Snake

Control the snake to eat each letter of the keyword in order

TypeRace

Type out the definitions as fast as you can

Wordsearch

Find the words that match each definition

Play Random Game

Resources:

Arithmetic Shifts

Logical Shifts