162507

We thought 70 X 100 is the easiest because time-sing by 10 100 1000 is easier than time-sing by 21 because you can cross out the zero or adding a zero (with 21 you cannot cross out any zero’s.

We also thought that 70 X21 is easier than 70 X 57 because you can times by 20 then 1 than time-ding by 50 then 7.

70X40 is easier than 70X21 because you can work it out the same way you can for 70X100.

For the division section 350 divided by 1 is the easiest because anything divided by 1 is the number you started with. 350 divided by 7 is second because 35 divided by 7 is 5.350 divided by 3 is the third easiest because you can use bustop
method which is easier than long division which you would have to do with 350 divided by 25.

Nancy and Henry