Математичний тренажер
Додавання і віднімання виду 230 + 70
230 + 70 = 300
/ \
200 30
1. Обчисли з усним поясненням.
710 + 80 = 960 + 20= 480 + 20 = 830 + 70 =
/ \ / \ / \ / \
350 + 30 = 460 + 30 = 510 + 80 = 630 + 50 =
/ \ / \ / \ / \
440 + 40 = 670 + 20 = 770 + 30 = 450 + 50 =
/ \ / \ / \ / \
530 + 60 = 750 + 40 = 870 + 20 = 340 + 40 =
/ \ / \ / \ / \
2. Розклади числа за зразком . Розв’яжи.
210 + 90 = (200 + 10) + 90 = 200 + (10 + 90) =_______
640 + 60 = (600 + 40) + 60= 600 + (40 + 60)=_______
380 + 20 = _____________________________________
550 + 50 =______________________________________
430 + 70 = ______________________________________
3. Розв'яжи приклади самостійно.
340 + 60 = 950 + 40 = 670 + 20 = 360 + 30 =
810 + 90 = 820 + 50 = 920 + 80= 430 + 70 =
960 + 40 = 470 + 20 = 450 + 50 = 920 + 80 =
670 + 30 = 370 + 30 = 890 + 10 = 640 + 60 =
480 + 20 = 710 + 90 = 870 + 30 = 410 + 40 =
4. Віднови приклади
880 + 0 = 900 5 0 +10 = 600 860 + 4 = 900 660 + 0 = 700 560 + 2 = 580 7 0 + 70 = 800 380 + 0 = 400 850 + 4 = 890
4 0 + 30 = 460
5 0 + 70 = 600 690 + 0 = 700 770 + 3 = 800 650 + 0 = 690 720 + 2 = 740 8 0 + 40 = 880 260 + 0 = 290 950 + 0 = 970 460 + 4 = 500 540 + ___ = 600 670 + ___ = 680 330 + ___ = 360 660 + ___ = 690 990 + ___ = 1000 320 + ___ = 370 430 + ___ = 500 760 + ___ = 800
550 + ___ = 600
Веселі перегони!
340 + 60 =
760 + 40 =
410 + 90 =
530 + 70 =
50 + 550 =
460 + 40 =
270 + 30 =
260 + 40 =
410 + 90=
570 + 30=
250 + 50=
20 + 780 =
360 + 40=
610 + 90=
890 + 10 =
40 + 460 =
360 + 40 =
940 + 60 =
480 + 20=
620 + 80 =
570 + 30 =
30 + 870 =
250 + 50 =
760 + 40 =
40 + 460 =
370 + 30 =
280 + 20 =
20 + 680 =
650 + 50 =
420 + 80 =
40 +260 =
320 + 80 =
580 + 20 =
30 + 770 =
380 + 20 =
540 + 60 =
Помилок
місце
640 + 60 =
370 + 30 =
260 + 40 =
550 + 50 =
440 + 60 =
80 + 520 =
250 + 50 =
350 + 50 =
370 + 30 =
280 + 20 =
520 + 80 =
660 + 40 =
420 + 80 =
540 + 60 =
20 + 680 =
840 + 60 =
330 + 70 =
220 + 80 =
560 + 40 =
350 + 50 =
60 + 340 =
710 + 90 =
530 + 70 =
260 + 40 =
940 + 60 =
30 + 870 =
380 + 20 =
650 + 50 =
620 + 80 =
730 + 70 =
70 + 330 =
180 + 20 =
610 + 90 =
340 + 60 =
580 + 20 =
770 + 30 =
Помилок
місце
750 + 50 =
640 + 60 =
230 + 70 =
360 + 40 =
820 + 80 =
730 + 70 =
410 + 90 =
420 + 80 =
270 + 30 =
580 + 20 =
730 + 70 =
460 + 40 =
350 + 50 =
380 + 20 =
670 + 30 =
120 + 80 =
370 + 30 =
510 + 90 =
340 + 60 =
720 + 80 =
430 + 70 =
660 + 40 =
210 + 90 =
540 + 60 =
970 + 30 =
130 + 70 =
240 + 60 =
260 + 40 =
480 + 20 =
850 + 50 =
410 + 90 =
150 + 50 =
960 + 40 =
280 + 20 =
540 + 60 =
360 + 40 =
Помилок
місце
230 + 70 =
520 + 80 =
560 + 40 =
370 + 30 =
420 + 80 =
460 + 40 =
710 + 90 =
720 + 80 =
290 + 10 =
360 + 40 =
650 + 50 =
230 + 70 =
60 + 140 =
520 + 80 =
370 + 30 =
50 + 450 =
560 + 40 =
830 + 70 =
380 + 20 =
60 + 240 =
620 + 80 =
50 + 650 =
590 + 10 =
70 + 330 =
670 + 30 =
240 + 60 =
40 + 860 =
750 + 50 =
340 + 60 =
70 + 130 =
550 + 50 =
70 + 230 =
30 + 670 =
470 + 30 =
520 + 80 =
30 + 670 =
Помилок
місце
460 + 40 =
80 + 220 =
840 + 60 =
50 + 350 =
270 + 40 =
60 + 340 =
350 + 50 =
330 + 70 =
290 + 10 =
510 + 90 =
20 + 780 =
640 + 60 =
370 + 30 =
60 + 240 =
70 + 630 =
30 + 370 =
440 + 60 =
20 + 680 =
30 + 470 =
250 + 50 =
40 + 560 =
60 + 240 =
460 + 40 =
10 + 790 =
20 + 680 =
340 + 60 =
50 + 550 =
60 + 340 =
630 + 70 =
40 + 460 =
70 + 430 =
260 + 40 =
80 + 220 =
430 + 70 =
40 + 460 =
870 + 30=
Помилок
місце
Робота над помилками
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