extracted_text'+ Calculate-\n\n4) 1-134 2h- 36 + 42\n\n—\n\n''+ Calculate-\n\n4) 1-134 2h- 36 + 42\n\n—\n\n'successThe text extraction did not capture the content well. Let me process and solve each question visually based on the image provided:
(1) 7−13+21−36+42
Solution:
Perform step-by-step addition and subtraction:
7−13=−6
−6+21=15
15−36=−21
−21+42=21
Answer: 21
(2) 18+(−35)−(−26)−(+46)+52+(−25)
Solution:
Step-by-step calculation:
18+(−35)=−17
−17−(−26)=−17+26=9
9−46=−37
−37+52=15
15+(−25)=−10
Answer: −10
(3) 4232−(3238)−(−22317)+(−1237)
Solution:
Convert to improper fractions:
4232=2394
3238=2377
−22317=−2363
−1237=−2330
Perform operations:
2394−2377=2317
2317−(−2363)=2317+2363=2380
2380+(−2330)=2380−2330=2350
Convert back to a mixed number:
2350=2234
Answer: 2234
(4) 321−132−541+2121
Solution:
Convert to improper fractions:
321=27
132=35
541=421
2121=1225
Find the least common denominator (LCD = 12):
27=1242
35=1220
421=1263
1225 remains unchanged.
Perform operations:
1242−1220=1222=611
611−1263=1222−1263=−1241
−1241+1225=−1216=−34
Convert back to a mixed number:
−34=−131
Answer: −131
Would you like detailed steps for any specific problem? Here are five related questions:
How do you simplify mixed fractions?
What is the importance of LCD in fraction arithmetic?
How do you handle negative numbers in subtraction problems?
Can you explain improper fractions vs. mixed fractions?
Why is step-by-step computation crucial in solving these problems?
Tip: Always double-check calculations when working with fractions to avoid errors in denominators!