Question

口算．

500×2=	400×6=	120+0=	7×30=	66÷3=
40÷5=	250×4=	90÷3=	210×7=	55×4=
789×0=	500×8=	6 7 - 4 7 =	2 5 + 3 5 =	7 10 - 1 10 =
1 11 + 6 11 =	42×2=	4 7 - 4 7 =	36÷3=	48÷4=

Answer 1

500×2=1000	400×6=2400	120+0=120	7×30=210	66÷3=22
40÷5=8	250×4=1000	90÷3=30	210×7=30	55×4=220
789×0=0	500×8=4000	6 7 - 4 7 = 2 7	2 5 + 3 5 =1	7 10 - 1 10 = 3 5
1 11 + 6 11 = 7 11	42×2=84	4 7 - 4 7 =0	36÷3=12	48÷4=12