. .
. v = -= +6= -=
-= 4-= += 15-=
+= -= -= -=
-= -= += +=
+= -= += +=
-= 4-= -= +=
-= += -= +=
6600÷110= 91-23= 22×50= 0×346=
125×32= 21×500= 1250×4= 439+61=
392+208= 188+702= 15×400= 200-47=
289-98= 66+25= 239+42= 65×50=
. .
. v .
65×2= 5×45= 650÷13= 740÷370=
75×40= 140÷30= 9600÷3200= 2×95=
200-104= 15+97= 58÷2= 72÷4=
1000-37= 6000÷150= 101+52= 47-19=
540×5= 740×6= 20000÷500= 28×300=
25×12= 43×50= 530-250= 600÷120= -= += -= -=
+= += —= -=
-= += += +=
+= += -= -=
+= += += +=
75×9= 83×10= 98×9= 123×3=
34×4= 25×〔24+16〕= 99+17= 79+57=
300÷25÷4 = 100÷4= 60÷12= 100÷25=
3200÷40= 49700÷700= 48÷24= 3150÷15=
4800÷25= 1500÷15= 75×40= 140÷30= 9600÷3200= 2×95= 200-104= 15+97= 58÷2= 72÷4= 1000-37= 6000÷150= 101+52= 47-19= 540
.
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