
Mental math exercises for 4th grade to print: addition, subtraction, multiplication, and division. Boost your child’s speed with effective and progressive worksheets!
4th grade mental math: printable exercises to progress step by step
In 4th grade, mental math plays a key role in mastering operations. Addition, subtraction, multiplication, or division: students learn to perform both simple and complex calculations without writing them down, using a variety of strategies. To help them automate reflexes and improve speed, we provide mental math exercises designed for regular and effective practice.
Each printable worksheet, available in PDF, allows students to practice in class or at home. Activities cover different types of calculations: doubles, halves, complements, known multiplications, decompositions, and estimations.
Designed to strengthen concentration and logic, these resources offer clear progression with simple instructions adapted to the students’ age. With these fun and progressive exercises, children develop mental agility and gain confidence in their ability to calculate quickly and accurately.
The goal of mental math in 4th grade
In 4th grade, mental math becomes a true tool for reflection and strategy. Through targeted exercises, students learn to manipulate numbers quickly, estimate results, and use appropriate methods depending on the situation (decomposition, grouping, step-by-step calculations…).
Working on mental math in 4th grade reinforces numerical fact memory, automates certain operations, and develops fluency in handling numbers. These skills are essential to gain autonomy and solve math problems more easily.
Through regular practice, children progress in logic, improve execution speed, and gain confidence in their ability to reason mentally without written support.
An example of a mental math exercise to do at home
To train your child in mental math in a fun way, turn a daily activity into a math challenge. For example, while preparing a meal, ask quick questions: “If I put 3 carrots on each plate, how many do I need for 5 plates?” or “How many are left if we have 20 cookies and eat 6?”.
You can also create a card game where each card shows an operation to solve mentally (e.g., 70 – 45, 6 × 4, or 120 ÷ 10). Award points for each correct answer given in less than 10 seconds.
These small mental math exercises stimulate memory, encourage speed, and allow children to automate strategies without stress. It’s an excellent way to review while keeping a playful spirit at home.
4th grade mental math worksheets to print and gain fluency
To develop the mental agility of 4th grade students, myBlee Math offers printable worksheets designed for regular and progressive training. Each resource develops essential reflexes: additions and quick subtractions, common multiplications, simple divisions, or sequences of calculations.
Designed to encourage autonomy, these worksheets can be used in class or at home in short daily sessions. They strengthen speed, accuracy, and student confidence when working with numbers.
The math app MyBlee Math complements this work with interactive exercises guided by a voice-over that helps children understand mistakes, progress, and maintain a dynamic and motivating mental math routine.

A useful resource for 4th grade teachers
Mental math is one of the fundamental skills to be consolidated in 4th grade, and teachers need diverse resources to support each student’s progress. Our printable worksheets offer targeted exercises to work on speed, strategies, and fluency with numbers, while respecting each child’s pace.
Usable as daily rituals, workshops, or independent practice, these resources help structure effective and differentiated sessions. They are designed to facilitate memorization, develop automatisms, and build student confidence in their abilities.
In addition, the MyBlee Math app allows for individualized work on tablet, with voice instructions, progress tracking, and immediate corrections. This digital tool, easy to integrate in class, encourages autonomy and helps manage diverse levels while maintaining a playful and motivating environment to progress in mental math.
Educational videos to practice mental math
To support students in learning mental math in 4th grade, our math videos, didactic and pedagogical, are an excellent complementary resource. Available online, they present key calculation concepts in short animated lessons with clear explanations and step-by-step examples.
Each video lets students review a technique, practice live, or discover new mental strategies. They can pause, redo an exercise, or watch a method multiple times until they feel confident.
These visual resources are ideal for varying learning formats and maintaining motivation, whether at home or in class. They strengthen understanding, encourage independent practice, and make mental math more engaging and accessible to everyone.