★期中检测6
实际用时：分钟
4×6 =
9×7 =
5×1 =
4×2 =
5×2 =
330+70 =
40+600 =
930-60 =
900-40 =
230+160 =
120-103 =
304+102 =
703-201 =
795-30 =
330+40 =
70+620 =
90+400 =
260+300 =
1000+400 =
3000-2000 =
900-400 =
380+400 =
660+170 =
320-230 =
900-140 =
270-40 =
330+90 =
180+400 =
50+600 =
280+90 =
300+600 =
20+730 =
190+240 =
5+3+15 =
3+2+22 =
45+8-20 =
370-300 =
200+800 =
270+230 =
24+43+12 =
97+43-64 =
25+112+18 =
44+36-50 =
134+36+72 =
126-46+267 =

4×6 = 24
9×7 = 63
5×1 = 5
4×2 = 8
5×2 = 10
330+70 = 400
40+600 = 640
930-60 = 870
900-40 = 860
230+160 = 390
120-103 = 17
304+102 = 406
703-201 = 502
795-30 = 765
330+40 = 370
70+620 = 690
90+400 = 490
260+300 = 560
1000+400 = 1400
3000-2000 = 1000
900-400 = 500
380+400 = 780
660+170 = 830
320-230 = 90
900-140 = 760
270-40 = 230
330+90 = 420
180+400 = 580
50+600 = 650
280+90 = 370
300+600 = 900
20+730 = 750
190+240 = 430
5+3+15 = 23
3+2+22 = 27
45+8-20 = 33
370-300 = 70
200+800 = 1000
270+230 = 500
24+43+12 = 79
97+43-64 = 76
25+112+18 = 155
44+36-50 = 30
134+36+72 = 242
126-46+267 = 347

拓展园地
在里填上合适的数字。

$\boldsymbol{\begin{array}{r} 4 \ 5 \ \boldsymbol{0}\\ - \ \boldsymbol{2} \ \boldsymbol{8} \ 3\\ \hline 1 \ 6 \ 7\end{array}}$
$\boldsymbol{\begin{array}{r} 7 \ \boldsymbol{5} \ 6\\ - \ \boldsymbol{1} \ 5 \ \boldsymbol{5}\\ \hline 4 \ 9 \ 9\end{array}}$