Simple Addition Estimation
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Simple Addition Estimation
📊 Part 1: Estimation Practice
Round each number to the nearest 10, then estimate the answer.
Round 23 to _____ and 17 to _____
Estimated answer: _____
Round 36 to _____ and 42 to _____
Estimated answer: _____
Round 58 to _____ and 29 to _____
Estimated answer: _____
Round 14 to _____ and 63 to _____
Estimated answer: _____
✏️ Part 2: Complete Addition Process
Follow these steps: 1) Estimate 2) Calculate 3) Check if your answer is reasonable
Step 1 - Estimate: 50 + 30 = 80
Step 2 - Calculate:
45
+ 32
____
77
Step 3 - Is 77 close to your estimate? Circle: YES / NO
(YES - 77 is close to our estimate of 80)
Step 1 - Estimate: _____ + _____ = _____
Step 2 - Calculate:
27
+ 56
____
Step 3 - Is _____ close to your estimate? Circle: YES / NO
Step 1 - Estimate: _____ + _____ = _____
Step 2 - Calculate:
39
+ 44
____
Step 3 - Is _____ close to your estimate? Circle: YES / NO
🔍 Part 3: Find the Mistakes
Use estimation to find which answers are wrong. Circle the incorrect answers.
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