★期中检测7
实际用时：分钟
210+56 =
480-170 =
280+104 =
140+55 =
480+120 =
17+60 =
81-18 =
5×7 =
3÷3 =
29+46 =
95-37 =
70-25 =
81÷9 =
64÷9 =
57÷8 =
400+600 =
1300+400 =
960-300 =
270+420 =
4000+600 =
900-30 =
480-120 =
340+60 =
900+400 =
370+680 =
37+53 =
29÷7 =
40÷6 =
680-240 =
90+100 =
1000+7000 =
490+60 =
230+700 =
960-30 =
200+800 =
330+680 =
900-600 =
730+160 =
960-390 =
3700+200 =
420+350 =
970-300 =
1000-800 =
370-20+40 =
90+40+70 =

210+56 = 266
480-170 = 310
280+104 = 384
140+55 = 195
480+120 = 600
17+60 = 77
81-18 = 63
5×7 = 35
3÷3 = 1
29+46 = 75
95-37 = 58
70-25 = 45
81÷9 = 9
64÷9 = 7……1
57÷8 = 7……1
400+600 = 1000
1300+400 = 1700
960-300 = 660
270+420 = 690
4000+600 = 4600
900-30 = 870
480-120 = 360
340+60 = 400
900+400 = 1300
370+680 = 1050
37+53 = 90
29÷7 = 4……1
40÷6 = 6……4
680-240 = 440
90+100 = 190
1000+7000 = 8000
490+60 = 550
230+700 = 930
960-30 = 930
200+800 = 1000
330+680 = 1010
900-600 = 300
730+160 = 890
960-390 = 570
3700+200 = 3900
420+350 = 770
970-300 = 670
1000-800 = 200
370-20+40 = 390
90+40+70 = 200

拓展园地
下面的算式中,每个图形分别代表多少?
$\begin{array}{r} 2\ △ \\ +\ ◯\ 5 \\ \hline 7\ 3\end{array}$
$△ = (\quad)$
$◯ = (\quad)$

$\begin{array}{r} 4\ \star \\ +\ □\ 6 \\ \hline 8\ 3\end{array}$
$\star = (\quad)$
$□ = (\quad)$

$\boldsymbol{△ = (8)}$
$\boldsymbol{◯ = (4)}$
$\boldsymbol{☆ = (7)}$
$\boldsymbol{□ = (3)}$