9×< 29 38 > 6× ×7<59
70 >×8 65 > 7× 5×< 46
□○□=□
口诀:
×3=15 6×=12 ×4=4
5×=10 4×=8 3×=9
6×=18 2×=4 ×1=1
×3=12 ×=36 ×=24
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=