Overview: 4 questions will be solved this time.Among them
☆4 arithmetic calculations
[1/4 Formula]
Work: Calculate the value of equation 1+0.9+0.8+0.7+0.6+0.5+0.4+0.3+0.2+0.1 .
Question type: Mathematical calculation
Solution:
1+0.9+0.8+0.7+0.6+0.5+0.4+0.3+0.2+0.1
=1.9+0.8+0.7+0.6+0.5+0.4+0.3+0.2+0.1
=2.7+0.7+0.6+0.5+0.4+0.3+0.2+0.1
=3.4+0.6+0.5+0.4+0.3+0.2+0.1
=4+0.5+0.4+0.3+0.2+0.1
=4.5+0.4+0.3+0.2+0.1
=4.9+0.3+0.2+0.1
=5.2+0.2+0.1
=5.4+0.1
=5.5 Answer:1+0.9+0.8+0.7+0.6+0.5+0.4+0.3+0.2+0.1=5.5[2/4 Formula]
Work: Calculate the value of equation 0.1×1.3+0.2×1.2+0.3×1.1+0.4×1+0.5×0.9 .
Question type: Mathematical calculation
Solution:
0.1×1.3+0.2×1.2+0.3×1.1+0.4×1+0.5×0.9
=0.13+0.2×1.2+0.3×1.1+0.4×1+0.5×0.9
=0.13+0.24+0.3×1.1+0.4×1+0.5×0.9
=0.13+0.24+0.33+0.4×1+0.5×0.9
=0.13+0.24+0.33+0.4+0.5×0.9
=0.13+0.24+0.33+0.4+0.45
=0.37+0.33+0.4+0.45
=0.7+0.4+0.45
=1.1+0.45
=1.55 Answer:0.1×1.3+0.2×1.2+0.3×1.1+0.4×1+0.5×0.9=1.55[3/4 Formula]
Work: Calculate the value of equation 1+(((77×78-6)-5679)÷107+30)×37 .
Question type: Mathematical calculation
Solution:
1+(((77×78-6)-5679)÷107+30)×37
=1+((6000-5679)÷107+30)×37
=1+(321÷107+30)×37
=1+33×37
=1+1221
=1222 Answer:1+(((77×78-6)-5679)÷107+30)×37=1222[4/4 Formula]
Work: Calculate the value of equation 12-(0.2×(3+1.5)+1.1)÷(7.5-(3-2.5)×5) .
Question type: Mathematical calculation
Solution:
12-(0.2×(3+1.5)+1.1)÷(7.5-(3-2.5)×5)
=12-(0.2×4.5+1.1)÷(7.5-(3-2.5)×5)
=12-2÷(7.5-(3-2.5)×5)
=12-2÷(7.5-0.5×5)
=12-2÷5
=12-0.4
=11.6 Answer:12-(0.2×(3+1.5)+1.1)÷(7.5-(3-2.5)×5)=11.6Your problem has not been solved here? Please go to the Hot Problems section!