直接写得数．3.86+2.4=7.6-0.56=4.5×102=3.25+2.3+1.75=361+199=7÷0.4=412+9.5=(36+1225)÷6=2.5×32=13+15=0.1÷0.01=3.47-（2.5+0.47）=4768÷791≈12÷45=1÷57=16−611+56=5.58÷0.78≈4.98×7.11≈

Question

直接写得数． 3.86+2.4=	7.6-0.56=	4.5×102=	3.25+2.3+1.75=
361+199=	7÷0.4=	4(1)/(2)+9.5=	(36+(12)/(25))÷6=
2.5×32=	(1)/(3)+(1)/(5)=	0.1÷0.01=	3.47-（2.5+0.47）=
4768÷791≈	12÷(4)/(5)=	1÷(5)/(7)=(1)/(6)−(6)/(11)+(5)/(6)=	5.58÷0.78≈
4.98×7.11≈	(3)/(4)+(4)/(5)=	4÷(1)/(5)−(1)/(5)÷4=

Answer 1

3.86+2.4=6.26	7.6-0.56=7.04	4.5×102=459	3.25+2.3+1.75=7.3
361+199=560	7÷0.4=17.5	4(1)/(2)+9.5=14	(36+(12)/(25))÷6=6(2)/(25)
2.5×32=80	(1)/(3)+(1)/(5)=(8)/(15)	0.1÷0.01=10	3.47-（2.5+0.47）=0.5
4768÷791≈6	12÷(4)/(5)=15	1÷(5)/(7)=(7)/(5)             (1)/(6)−(6)/(11)+(5)/(6)=(5)/(11)	5.58÷0.78≈7
4.98×7.11≈35	(3)/(4)+(4)/(5)=(31)/(20)	4÷(1)/(5)−(1)/(5)÷4=19(19)/(20)