🧠 Grade 4 Math Quiz · Operations
Mental Math Strategies Practice Questions
70 Grade 4 questions on Mental Math Strategies. Choose an answer to get instant feedback and a short explanation — the first 10 are free.
- 1. 📖 Lesson
- 2. 🧠 Practice
- 3. 📝 Worksheet
- 4. 🎮 Game
🧠
Practice Questions
10 of 70 questions
1
/
10
What is a good mental math way to add 47 + 36?
Explanation:
Break 36 into 30 + 6, add 47 + 30 = 77, then +6 = 83.
To add 59 + 28 mentally, best strategy is:
Explanation:
Add 30 then subtract 2 (compensation).
59 + 41 = ? Use mental math.
Explanation:
59 + 41 = 100 (makes a nice round number).
What is 48 + 35 using mental math?
Explanation:
48 + 35: 48 + 30 = 78, +5 = 83.
Best mental way for 67 - 29:
Explanation:
Subtract 30 then add 1 back (compensation).
84 + 19 mentally is:
Explanation:
84 + 20 - 1 = 103 (compensation).
What is 125 + 75 using mental math?
Explanation:
125 + 75 makes 200 easily.
Best strategy for 56 + 38:
Explanation:
Add 40 then subtract 2.
93 - 47 mentally:
Explanation:
93 - 50 + 3 = 46 (compensation).
What is 68 + 57 using friendly numbers?
Explanation:
68 + 57: 70 - 2 + 57 = 125 or break apart.
🏆
🔒
10 of 70 questions shown
60 more questions are waiting for you. Unlock all Grade 1–6 lessons and questions with InukMath Premium.
🔓 Get Full Access