speed math

 $839^2$  

• 724921

• 713921

• 703921

• 714921

which of the following fractions is the largest ?

• 7/8

• 13/16

• 31/40

• 63/80

Arrange in descending order 5/9, 7/11, 11/17, 8/15

• 11/17 > 7/11 > 5/9 > 8/15

• 11/17 > 8/15 > 7/11 > 5/9

• 5/9 > 7/11 > 8/15 > 11/17

• 5/9 > 8/15 > 7/11 > 11/17

8796 x 223

• 1971508

• 1951508

• 1960508

• 1961508

 $\sqrt{1521}$  

• 41

• 39

• 49

• 31

239 x 598

• 141922

• 142922

• 132922

• 131922

which is the smallest 295/633 , 195/354

• 195/354

• 295/633

 $8962^2$  

• 80327444

• 80217444

• 80317444

• 80337444

cube root of 79507

• 33

• 43

• 53

• 63

78 x 673

• 52294

• 53294

• 53494

• 52494