Show:
addition
subtraction
rounding
equivalent fractions
comparing fractions
100

4,987 + 321

5,308

100

4,000-378

3,622

100

round 45,653 to the nearest ten thousands

50,000

100

Is 1/2 = to 4/8

yes

100

butterfly (compare) <>=

1/2   and    6/7

<

200

7,894+ 9,874

17,768

200

4,587-938

3,649

200

round 45,653 to the nearest thousands

46,000

200

Is 40/50 = to 4/5

yes

200

butterfly (compare) <>=

9/8  and 8/9

>

300

100,987+4,789

105, 776

300

109,321-18741

90,580

300

round 45,653 to the nearest hundreds

45,700

300

is 5/20 = to 1/3

no

300

butterfly (compare) <>=

5/50 and 1/10

=