3rd Grade Math Worksheets -Worksheets Library - Free Printable

I'll solve each problem on this worksheet step by step.

Addition Problems:
1. 47 + 21 = 68
2. 36 + 24 = 60

Subtraction Problems:
3. 67 - 45 = 22
4. 58 - 42 = 16

Fill in the missing numbers (Before/After):
Looking at the number line with 30, __, 40, __, 50:
- Between 30 and 40: 35
- Between 40 and 50: 45

Read the Number Sentence and Fill in the Answer:
5. 11 - 7 - 3 = 1 (because 11 - 7 = 4, then 4 - 3 = 1)
6. 9 + 7 - 4 = 12 (because 9 + 7 = 16, then 16 - 4 = 12)

What Time is it? (Reading clocks):

Clock 1 (top left): The hour hand is between 3 and 4, minute hand points to 12 → 3:00

Clock 2 (top right): The hour hand is just past 3, minute hand points to 6 → 3:30

Clock 3 (bottom left): The hour hand is between 7 and 8, minute hand points to 3 → 7:15

Clock 4 (bottom right): The hour hand is just past 7, minute hand points to 6 → 7:30

Let me verify my calculations:
- 47 + 21: 7+1=8, 4+2=6 → 68 ✓
- 36 + 24: 6+4=10 (carry 1), 3+2+1=6 → 60 ✓
- 67 - 45: 7-5=2, 6-4=2 → 22 ✓
- 58 - 42: 8-2=6, 5-4=1 → 16 ✓
- 11 - 7 - 3: 11-7=4, 4-3=1 ✓
- 9 + 7 - 4: 9+7=16, 16-4=12 ✓

Final Answer:
Addition: 47 + 21 = 68; 36 + 24 = 60
Subtraction: 67 - 45 = 22; 58 - 42 = 16
Missing numbers: 35, 45
Number sentences: 11 - 7 - 3 = 1; 9 + 7 - 4 = 12
Times: 3:00, 3:30, 7:15, 7:30