Topic icon key | ||
eq | Equation | Each item in the topic is in the form of an equation |
id | Identify | Each item in the topic is a thing |
mi | Missing item | Each item in the topic is a statement with a missing term |
10 | Number of items | There are 10 items in this topic |
8 | Extended items | Additional questions for games and tests in this topic |
Our math topics for 4th grade learners are designed to follow closely the Common Core standards for math for 4th grade pupils.
4th grade addition and subtraction has a series of topics that enable you to practice adding and subtracting double digit numbers ending in 9 or 1. In these topics you are expected to use rounding and adjusting to add or subtract such numbers. The "Number machine" sub-category uses 2 step operations and introduces the notion of order of operations which will become increasinlgy important in the next few years. "Inverse operations" are used to check addition answers using subtraction and subtraction answers using addition.
Add 79 to a multiple of 10
Add 79 to a number by adding 80 and then subtracting 1
Add 89 to a multiple of 10
Add 89 to a number by adding 90 and then subtracting 1
Add 99 to a multiple of 10
Add 99 to a number by adding 100 and then subtracting 1
Add 71 to a multiple of 10
Add 71 to a number by adding 70 and then adding 1 more
Add 81 to a multiple of 10
Add 81 to a number by adding 80 and then adding 1 more
Add 91 to a multiple of 10
Add 91 to a number by adding 90 and then adding 1 more
Subtract 79 from a multiple of 10
Subtract 79 from a number by subtracting 80 and then adding 1
Subtract 89 from a multiple of 10
Subtract 89 from a number by first subtracting 90 and then adding 1
Subtract 99 from a multiple of 10
Subtract 99 from a number by subtracting 100 and then adding 1
Subtracting 71
Subtract 71 by subtracting 70 and then subtracting 1 more
Subtracting 81
Subtract 81 by subtracting 80 and then subtracting 1 more
Subtracting 91
Subtract 91 by subtracting 90 and then subtracting 1 more
Add and subtract
Add and subtract to find the answer to these 2 step problems
Order of operations
Identify which pairs of operations produce the same answer
Missing addition
Find the missing addition in these 2 step add and subtract number machine operations
Missing subtraction
Find the missing subtraction value in these 2 step add and subtract operations
Checking subtractions
Choose the inverse operations that check these subtractions
Checking additions
Choose the inverse operations that check these additions
A topic is selected at the beginning of a session at Free Math Games and will be remembered when you move between games or activities. The math for the topic is carefully constructed to match the elementary math level commonly taught in US schools. This means that you as an elementary pupil should see similar math problems to those you are seeing at school (if you are at school) for any particular subject. Please let us know if that is not the case.
See the help box below for instructions on choosing a topic here at Free Math Games.
UXO * Duck shoot * The frog flies * Pong * Cat and mouse * The beetle and the bee
Rock fall * Four in a row * Sow grow * Choose or lose * Mix and match
Click on the "1. Start" button in the top navigation bar - that brings you to this elementary level topic selection page. On the topic selection page you will see that the topics are divided up:
Since you are currently within the elementary section of Free Math Games you will see the elementary topics. The elementary grades will have loaded. Choose your grade. The broad categories available will load. Click on a category to see the available sub-categories and topics.
For example, if you choose fifth grade, then the category: "Fractions" you will be offered a choice of fraction sub-categories and topics suitable for Grade 5. Click on each sub-category to view the available topics.
When you click on the name of a topic, the topic will load into the lesson page (once a topic has loaded it will be available for all activities and will not have to be downloaded again) and the lesson start page will be displayed. You can choose to do the lesson or jump immediately to the games using that topic.
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