Answer:
1. 21 6.31
2. 13 7. 21
3. 3 8. 7
4. 7 9. 21
5. 14 10. 22
Step-by-step explanation:
1. (10+5)+(4+2)= 15+6=21
2.(10+5)-(4-2)= 15-2=13
3.(10-5)-(4-2)= 5-2=3
4.(10-5)+(4-2)= 5+2=7
5.2(4)+3(2)= 8+6=14
6.4^2+2(10)-5= 16+20-5=31
7.10+5+4+2= 21
8. 3(4)-5= 12-5=7
9.5(5)-2(2)= 25-4=21
10.2(4^2)-10= 2(16)-10=32-10=22
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Answers & Comments
Answer:
1. 21 6.31
2. 13 7. 21
3. 3 8. 7
4. 7 9. 21
5. 14 10. 22
Step-by-step explanation:
1. (10+5)+(4+2)= 15+6=21
2.(10+5)-(4-2)= 15-2=13
3.(10-5)-(4-2)= 5-2=3
4.(10-5)+(4-2)= 5+2=7
5.2(4)+3(2)= 8+6=14
6.4^2+2(10)-5= 16+20-5=31
7.10+5+4+2= 21
8. 3(4)-5= 12-5=7
9.5(5)-2(2)= 25-4=21
10.2(4^2)-10= 2(16)-10=32-10=22