Current location - Training Enrollment Network - Mathematics courses - The fifth grade of primary school, the second volume of mathematics [synchronous exercises], page 27, all the answers.
The fifth grade of primary school, the second volume of mathematics [synchronous exercises], page 27, all the answers.
I won't report the first question;
2:16 * 6 * 0.74 = 71.04 (kg)
Three: 720 tons =720 cubic meters
720/ 18/8=5 (m)
Four: 50 * 25 *1.2/2.5/60 =10 (hours)
Expand 1: 42- 1*2=40 (cm)
40*40*40=64000 (cubic centimeter)
Development II: 24*(240/2/24)*8=960 (cubic centimeter)