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I give high marks to 60 fourth-grade oral arithmetic problems (with answers)
640÷80= 8 15×5= 75 23×3= 69

12×2×5= 100 480÷80=6 16×5= 80

27×3= 8 1 90÷ 15=6 48÷4= 12

640÷ 16=40 39÷3= 13 24×20= 480

32×3= 96 48÷ 16= 3 12×8= 96

27×3= 56÷ 14= 24÷8=

14×2= 28 83-45= 560÷80=

96÷24= 40÷20= 40×30=

37+26= 76-39= 605+59=

30×23= 12×8= 27+32=

48+27= 4500×20= 73+ 15 =

120×600 = 200×360= 6800×400=

280+270= 4×2500= 6000÷40=

5× 1280= 3 10-70= 400× 14=

470+ 180= 1000÷25= 160×600=

20×420= 290×300= 8 100÷300=

7600÷200= 7600÷400= 680+270=

980÷ 14= 4200÷30= 6× 1300=

1300×50= 200×48= 930-660=

530+280= 9200÷400= 840÷2 1=

180×500= 8000÷500 = 1900÷20=