270 - 140 = 650 - 190 = 840 - 730 = 340 + 360 =
580 + 400 = 540 - 220 = 350 - 260 = 920 - 530 =
550 - 440 = 890 - 470 = 530 - 260 = 380 - 130 =
600 - 380 = 840 - 730 = 720 - 360 = 780 - 710 =
480 - 260 = 550 - 390 = 680 - 520 = 340 - 270 =
820 - 660 = 230 - 230 = 330 + 210 = 520 + 930 =
370 + 530 = 910 + 910 = 580 + 850 = 540 + 370 =
210 + 410 = 530 + 390 = 240 + 790 = 650 + 640 =
670 + 220 = 890 + 260 = 670 + 280 = 1100-500=
1400-900= 500-100= 1200-900= 1000-600=
1100-500= 1500-900= 1100-600= 800-200=
300-200= 1400-500= 1100-200= 1200-700=
1300-500= 500 + 500 = 400 + 700 = 100 + 700 =
800 - 400 = 500 + 100 = 1000 - 900 = 500 + 700 =
200 + 200 = 100 + 600 = 500 - 400 = 500 - 400 =
1100 - 900 = 1200 - 700 = 400 + 300 = 1200 - 600 =
600 + 200 = 100 + 200 = 700 + 400 = 800 + 600 =
200 + 600 = 800 + 700 = 400 + 600 = 600 + 700 =
700 + 500 = 600 + 100 = 500 + 500 = 500 + 100 =
700 + 200 = 100 + 700 = 53 + 19 = 54 + 53 =
30 + 56 = 66 + 36 = 79 + 56 = 93 + 98 =
20 + 48 = 61 + 33 = 81 + 51 = 96 + 55 =
600 - 380 = 840 - 730 = 720 - 360 = 780 - 710 =
480 - 260 = 550 - 390 = 680 - 520 = 340 - 270 =
820 - 660 = 230 - 230 = 330 + 210 = 520 + 930 =
540 + 370 = 370 + 530 = 910 + 910 = 580 + 850 =
900 + 200 = 1800-900= 480 + 580 = 470 + 110 =
870 - 480 = 310 + 690 = 830 + 610 = 930 + 210 =
440 + 720 = 290 - 210 = 590 - 410 = 250 - 170 =
《二位数乘一位数综合》
30×4= 23×2= 30×2= 22×2=
50×6= 34×2= 40×6= 34×2=
20×2= 23×3= 30×5= 22×4=
80×7= 22×3= 70×7= 23×2=
40×3= 23×3= 80×2= 42×2=
《两位数和一位数相乘》
3×22= 21×2= 3×22= 33×2=
2×32= 42×2= 2×22= 23×3=
2×41= 21×4= 3×22= 22×3=
《一百几十减整十数》
140-50= 160-70= 150-90= 140-50=
150-70= 110-60= 120-70= 120-60=
140-70= 150-60= 150-80= 130-60=
170-90= 120-80= 110-50= 130-60=
160-70= 150-60= 130-60= 140-60=
《整百整十数的'加减法》
130-50= 60+70= 140-70= 90+40=
170-80= 50+70= 130-40= 50+80=
130-50= 60+60= 130-80= 90+30=
140-90= 90+80= 130-60= 60+80=
150-80= 60+50= 150-80= 70+60=
《整百数的加法》
900 + 100= 500 + 300= 100 + 700= 500 + 500=
700 + 200= 900 + 100= 700 + 200= 600 + 400=
200 + 300= 800 + 200= 200 + 700= 400 + 500=
600 + 100= 700 + 200= 200 + 700= 400 + 300=
800 + 100= 500 + 500= 400 + 400= 700 + 100=
《整百数的减法》
800 - 300= 300 - 200= 600 - 100= 800 - 500=
900 - 800= 700 - 300= 500 - 200= 600 - 500=
300 - 200= 500 - 300= 700 - 200= 700 - 200=
700 - 200= 800 - 300= 400 - 200= 300 - 100=
400 - 100= 400 - 200= 800 - 200= 900 - 400=
《整百数加整十数》
20 + 500= 500 + 20= 10 + 400= 300 + 60=
30 + 400= 200 + 60= 20 + 700= 600 + 10=
30 + 300= 200 + 30= 80 + 700= 700 + 50=
50 + 200= 500 + 60= 20 + 300= 500 + 50=
70 + 300= 500 + 70= 70 + 500= 600 + 40=
24�4= 7+63= 9�4= 36�6= 9�7=
56�8= 28+6= 7�5= 36+4= 30�5=
63�9= 64�8= 38+16= 45�5= 7�1=
25+23= 12+35= 27+71= 46+33= 40�8=
21+15= 36+22= 59+18= 72+24= 41-29=
15�5= 9�3= 42-15= 18�9= 180-60=
72-40= 47+8= 14+85= 61+27= 170+20=
5�9= 7�7= 73+16= 60+300= 10�5=
83-29= 5�6= 43-17= 21+27= 32�8=
30�6= 36�4= 64�8= 5�1= 15�3=
16�8= 42�6= 400+50= 38+26= 93-8=
49�7= 6�9= 56-30= 35�5= 27+25=