What are the problems with math oral calculation in the second volume of the third grade?
Oral Practice in Grade Three (1) 26+9 = 57-38 =1500-700 = 42× 2 = 99 ÷ 3 = 770 ÷ 7 = 660 ÷ 3 = 960 ÷ 3 =/. 3 = 420-20 = 93÷3 = 880÷4 = 1200-200 = 1×7 = 80-46 = 0÷5 1 = 0÷76 = 0×85 = 70÷7 = 1 4×2 = 5×900 = 2×200 = 84÷4 = 0÷9654332= 660÷2= 640÷8= 880÷4= 7500-500= 0÷9 1= 12×4= 3×3 1= 0×57= 1 20×4= 0×97= 360÷9= 44×2= 960÷3= 32×2= 2×440= 460÷2= 70+500= 3×33= 28 0÷4= 9×400= 3×330= 690÷3= 49+33= 700÷7= 23×3= 78-36= 1 1 ×4= 230×3= 3 10×3= 390÷3= 230×3= 1 1×4= 82-55= 3 1 0×3= 720÷9= 4 700-700 = 600 ÷ 3 = 48+28 = 640 ÷ 8 = 480 ÷ 8 = 7× 50 = 800 ÷ 8 = 880 ÷ 8 = 9× 500 = 80+ 17.00÷5= 930÷3= 800÷4= 60- 1 5= 900÷3= 450÷9= 360÷6= 37+56= 32×3= 70×7= 1200-700= 300÷6= 50×7= 0×37= 53- 14= 17+27= 840÷4= 2× 14 = 1 40÷2= 660÷6= 7×800= 7×700= 840÷2= 430×2= 540÷9= 3 1×3= 13×3= 34+56= 96÷3= 2×330= 50×6= 680÷2= 620÷2= 6×800= 960÷3= 1500-900= / Kloc-0/800-800 = 63 ÷ 3 = 26+57 = 800 ÷ 8 = 33+57 = 600× 3 = 37+8 = 480 ÷ 8 = 630 ÷ 3 = 62-33 = 50. 70 = 24×2 = 30×70 = 10×74 = 50× 10 = 70× 10 = 30×40 = 24×20 = 12×20 = 30×2 1 = 20×70 = 28× 1 = 20× / kloc-0/3 = 6543860÷6= 10×89= 69× 10= 13×30= 23×30= 4×90= 60×60= 60×40= 90×30= 2 1×40= 30×20= 40×90= 2×3 1 = 33×20= 40×70= 48+ 19= 70×6= 4×900= 2×3 10= 20+35= 45+35= 32×20= 70×60= 84× 1= 900×6= 34×20= 33×30= 3 1×20= 700×6= 84× / kloc-0/0= 9×800= 70×30= 2×42= 86-47= 5×90= 22×3 0 = 6× 500 = 8× 70 = 42× 20 = 400+300 = 5× 900 = 1 0× 33 = 22× 0 = 80× 70 = 200× 4 = 0 ÷ 20 = 6× 60 = 22.300÷6 = 40× 1 1 = 360÷9 = 1 0×34 = 40×90 = 90×60 = 490÷7 = 20×34 = 300×3 = 80×4 = 65×0 = 330÷3 = 250÷5 = 680-80 = 2 1 ×40 = 80×40 = 6500÷8= 480÷8= 33×30= 50×5= 800×3= 60×50= 4 10×2= 4 1×20= 3 10×3= 20×23= 440÷4= 30×32= 0×35= 10×35= 29+6 / kloc-0/= 40×70= 30×30= 50×90= 80×30= 20× 14= 90×50= 420÷6= 300÷6= 240÷4= 69× 10= 22×40= 33×20= 900÷9= 8 1 0÷9= 630÷9= 30×23= 330×3= 0×30= 750-50= 480÷8= 5000+2000= 77 -48 = 300 ÷ 5 = 300+700 = 420 ÷ 2 = 820 ÷ 2 = 70× 1 1 = 4500-500 = 20× 40 = 400 ÷ 4 = 6540.) Name: Class III () 57+29 = 540 ÷ 6 =10× 73 =10× 58 = 0 \. 1×20= 7000-3000= 30×30= 10×47= 30×23= 660÷6= 5900-5000= 1 1×40= 70×40= 10×36= 6000+2000= 80×80= 29+ 1 4= 80×50= 200×4= 36+56= 88× 10= 600÷6= 22×30= 400+600= 34+29= 800÷8= 2 1×30= 720÷8= 33×30= 32×20= 87× 1 0= 500+40= 22×40= 440÷4= 33×20= 320÷4= 900÷3= 77- 29 = 0/93 = 640/2 = 30× 50 = 75+ 18 = 600+700 = 40× 70 = 43+38 = 90× 50 = 84-65 = 43- / kloc-0/0. 10= 700×5= 80×90= 40×70= 2 1×30= 660÷6= 65× 10= 540÷6= 22×40= 80×80= 10×47= 30×70= 0÷93= 600÷6= 1 0×36= 660÷3= 43+38= 720÷8= 36+56= 23×30= 10×73= 90×50= 800÷8= 6000+2000= 120×4= 640÷2=