Aschool has 7 buses. each bus has 40 seat. filling in the missing number to find the total number of seat on the 7 buses 7*40=7 group of 7 groups = = seats on the bus

7*40=7 group of 4 ten

7 groups of 4 tens=28 tens

28 tens = 280 seats on the bus

Step-by-step explanation:

A school has 7 buses. Each bus has 40 seat

1 bus = 40 seat

To find the number of seats on 7 buses we multiply the number seat of each bus with total number of buses

7 buses = 40 * 7 = 280

40 can be written as 4 tens

7*40=7 group of 4 ten

7 groups oftens= tens

7 group of 4 tens

we add 7 groups of 4 tens , 4 +4+4+4+4+4+4 = 28 tens

7 groups of___4___tens= 28tens

tens = seats on the bus

28 tens = 28 * 10 = 280 seats on the bus

answear:

a

step-by-step explanation: a