Subtraction (1) 517-348 = (2) 507-348 = (3) 500-185 =

Multiplication (1) 740× 6 = (2) 209× 9 = (3) 540× 5 = (4) 804× 9 =

Division (1)160 ÷ 4 = (2) 450 ÷ 5 = (3) 455 ÷ 5 =

Application questions:

1. The experimental primary school has built a 400-meter-long circular plastic track, which has been completed 130 meters. The rest will be completed in 30 days. How many meters do you have to walk on average every day to complete the task?

To celebrate New Year's Day, the students made 65 red flowers and 25 yellow flowers, and asked every five flowers to be tied into a bunch.

How many flowers did the students make?