Question 5:
Calculate the value of 45+15.4÷4 and express the answer correct to one decimal place.
Solution:
45+15.4÷4=45+3.85=0.8+3.85=4.65=4.7 (one decimal place)
Calculate the value of 45+15.4÷4 and express the answer correct to one decimal place.
Solution:
45+15.4÷4=45+3.85=0.8+3.85=4.65=4.7 (one decimal place)
Question 6:
Calculate the value of 84 – 3(14 + 48 ÷ 6) =
Solution:
84−3(14+48÷6)=84−3[14+(48÷6)]=84−3(14+8)=84−3(22)=84−66=18
Calculate the value of 84 – 3(14 + 48 ÷ 6) =
Solution:
84−3(14+48÷6)=84−3[14+(48÷6)]=84−3(14+8)=84−3(22)=84−66=18
Question 7:
Calculate the value of 4×0.180.9.
Solution:
4×0.180.9=0.720.9 =0.72×100.9×10 =7.29 =0.8
Calculate the value of 4×0.180.9.
Solution:
4×0.180.9=0.720.9 =0.72×100.9×10 =7.29 =0.8
Question 8:
Calculate the value of (8.4−2.64)÷43 and express the answer correct to two decimal places.
Solution:
(8.4−2.64)÷43=5.761.44×34=4.32
Calculate the value of (8.4−2.64)÷43 and express the answer correct to two decimal places.
Solution:
(8.4−2.64)÷43=5.761.44×34=4.32