Find the Missing Sign in 40+1□47-7: Comparison Operation Practice

Comparison Operations with Simple Arithmetic

Choose the correct sign:

40+1477 40+1\Box47-7

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Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Choose the correct sign:

40+1477 40+1\Box47-7

2

Step-by-step solution

To solve this problem, we need to evaluate each of the given expressions and compare the resulting values.

Step 1: Calculate 40+140 + 1.

  • 40+1=4140 + 1 = 41

Step 2: Calculate 47747 - 7.

  • 477=4047 - 7 = 40

Step 3: Compare the results from the calculations in Step 1 and Step 2.

We have 4141 from the first expression and 4040 from the second expression. Clearly, 41>4041 > 40.

Thus, when comparing 40+140 + 1 to 47747 - 7, we have:

40+1>47740 + 1 > 47 - 7

Therefore, the correct choice is > > .

3

Final Answer

> >

Key Points to Remember

Essential concepts to master this topic
  • Rule: Calculate each side separately before comparing the values
  • Technique: Evaluate 40 + 1 = 41 and 47 - 7 = 40
  • Check: Compare final results: 41 > 40, so > is correct ✓

Common Mistakes

Avoid these frequent errors
  • Comparing numbers before calculating
    Don't compare 40+1 to 47-7 by just looking at the first numbers = wrong comparison! You might think 47 > 40, but you must calculate first. Always complete all arithmetic operations before choosing the comparison sign.

Practice Quiz

Test your knowledge with interactive questions

If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?

FAQ

Everything you need to know about this question

Do I need to follow order of operations here?

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Yes! Even though these are simple additions and subtractions, you must calculate each expression completely before comparing. Think of the box as a pause - finish the left side, finish the right side, then compare.

What if both sides equal the same number?

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Then you would choose the equals sign (=)! Always calculate both sides first - sometimes expressions that look different can have the same value.

Can I solve this by looking at the numbers without calculating?

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No! This is a common trap. You might see 47 and think it's bigger than 40, but 47 - 7 = 40 while 40 + 1 = 41. Always do the math first!

How do I remember which way the greater than symbol points?

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The symbol always points to the smaller number! Think of it like a hungry mouth - it wants to eat the bigger number. So 41 > 40 means 41 is greater than 40.

What if I get confused about which side to calculate first?

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It doesn't matter which side you start with! Calculate both sides completely, then compare the final numbers. Left first or right first - your choice!

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