(8)* 8 & lt; 65 (if 9,8 * 9 = 72, it will be greater than 65, if 7,7 * 8 = 56, although
( 1 1)* 9 & lt; 100 (above)
(30)/5 & lt; 7 (children have not learned fractions and decimals, and they should fill in 30,30 ÷ 5 = 6.
(48)/6 & lt; 9(48÷6=8,& lt9)
Mainly to let children master the formulas of division and multiplication.