一、口算。
$11×5=$ $700+600=$ $130-70=$
$24÷2=$ $80+50=$ $1300-500=$
$23×2=$ $90+70=$ $160-90=$
$63÷3=$ $30+80=$ $110-30=$
$21×4=$ $1200-600=$ $70+70=$
$99÷3=$ $80+90=$ $110-40=$
$10×6=$ $40+80=$ $160-80=$
$88÷4=$ $180-90=$ $60+90=$
$33×2=$ $400+900=$ $110-20=$
$69÷3=$ $170-90=$ $800+700=$
$11×5=$ $700+600=$ $130-70=$
$24÷2=$ $80+50=$ $1300-500=$
$23×2=$ $90+70=$ $160-90=$
$63÷3=$ $30+80=$ $110-30=$
$21×4=$ $1200-600=$ $70+70=$
$99÷3=$ $80+90=$ $110-40=$
$10×6=$ $40+80=$ $160-80=$
$88÷4=$ $180-90=$ $60+90=$
$33×2=$ $400+900=$ $110-20=$
$69÷3=$ $170-90=$ $800+700=$
答案
一、55 1300 60
12 130 800
46 160 70
21 110 80
84 600 140
33 170 70
60 120 80
22 90 150
66 1300 90
23 80 1500
12 130 800
46 160 70
21 110 80
84 600 140
33 170 70
60 120 80
22 90 150
66 1300 90
23 80 1500
二、在(
(
$60+$(
(
$60+$(
(
90
)里填合适的数。(
90
)$+90=180$ $50+$(90
)$=140$ $1500-$(900
)$=600$$60+$(
80
)$=140$ $80+$(80
)$=160$ $170-$(80
)$=90$(
70
)$+50=120$ $40+$(70
)$=110$ $130-$(90
)$=40$$60+$(
60
)$=120$ (60
)$+50=110$ (130
)$-60=70$(
500
)$+800=1300$ $70+$(90
)$=160$ (110
)$-30=80$答案
二、90 90 900
80 80 80
70 70 90
60 60 130
500 90 110
80 80 80
70 70 90
60 60 130
500 90 110
登录