This Grade 2 worksheet challenges students to find missing addends within 1000, such as 232+__=500. Through fill-in problems and matching equations to their missing numbers, Grade 2 learners practice inverse thinking by subtracting a known part from a known total. The worksheet builds algebraic readiness and deepens understanding of the relationship between addition and subtraction with three-digit numbers throughout the year.
Style:
Add & Subtract Within 1000
Part A: Fill in the Blank
Write the missing word or number on each line.
1. 232 + 268 = 500
2. 145 + 255 = 400
3. 310 + 290 = 600
4. 278 + 172 = 450
5. 425 + 375 = 800
6. 150 + 175 = 325
7. 206 + 344 = 550
8. 482 + 218 = 700
9. 360 + 540 = 900
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
215 + __ = 400
→ 185
185
330 + __ = 650
→ 320
320
145 + __ = 500
→ 355
355
260 + __ = 700
→ 440
440
Add & Subtract Within 1000
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) 232 + 268 = 500
2) 145 + 255 = 400
3) 310 + 290 = 600
4) 278 + 172 = 450
5) 425 + 375 = 800
6) 150 + 175 = 325
7) 206 + 344 = 550
8) 482 + 218 = 700
9) 360 + 540 = 900
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
215 + __ = 400
→ 185
185
330 + __ = 650
→ 320
320
145 + __ = 500
→ 355
355
260 + __ = 700
→ 440
440
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
Auto-graded
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