Устный счёт 1 класс

Устный счёт 1 класс

Примеры уроков онлайн-курса по математике

1 урок курса

Теория:

Таблица сложения

$\displaystyle 0+1=1$
$\displaystyle 1+1=2$$\displaystyle 0+2=2$
$\displaystyle 2+1=3$$\displaystyle 1+2=3$$\displaystyle 0+3=3$
$\displaystyle 3+1=4$$\displaystyle 2+2=4$$\displaystyle 1+3=4$
$\displaystyle 4+1=5$$\displaystyle 3+2=5$$\displaystyle 2+3=5$
$\displaystyle 5+1=6$$\displaystyle 4+2=6$$\displaystyle 3+3=6$
$\displaystyle 6+1=7$$\displaystyle 5+2=7$$\displaystyle 4+3=7$
$\displaystyle 7+1=8$$\displaystyle 6+2=8$$\displaystyle 5+3=8$
$\displaystyle 8+1=9$$\displaystyle 7+2=9$$\displaystyle 6+3=9$
$\displaystyle 9+1=10$$\displaystyle 8+2=10$$\displaystyle 7+3=10$

Таблица вычитания

$\displaystyle 1-1=0$$\displaystyle 2-2=0$$\displaystyle 3-3=0$
$\displaystyle 2-1=1$$\displaystyle 3-2=1$$\displaystyle 4-3=1$
$\displaystyle 3-1=2$$\displaystyle 4-2=2$$\displaystyle 5-3=2$
$\displaystyle 4-1=3$$\displaystyle 5-2=3$$\displaystyle 6-3=3$
$\displaystyle 5-1=4$$\displaystyle 6-2=4$$\displaystyle 7-3=4$
$\displaystyle 6-1=5$$\displaystyle 7-2=5$$\displaystyle 8-3=5$
$\displaystyle 7-1=6$$\displaystyle 8-2=6$$\displaystyle 9-3=6$
$\displaystyle 8-1=7$$\displaystyle 9-2=7$$\displaystyle 10-3=7$
$\displaystyle 9-1=8$$\displaystyle 10-2=8$
$\displaystyle 10-1=9$

Инструкция:

Задание 1:

Задание 2:

Задание 3:

Задание 4:

Задание 5:

Задание 6:

Задание 7:

Последний 20 урок курса

Теория:

Таблица сложения

$\displaystyle 0+1=1$
$\displaystyle 1+1=2$$\displaystyle 0+2=2$
$\displaystyle 2+1=3$$\displaystyle 1+2=3$$\displaystyle 0+3=3$
$\displaystyle 3+1=4$$\displaystyle 2+2=4$$\displaystyle 1+3=4$$\displaystyle 0+4=4$
$\displaystyle 4+1=5$$\displaystyle 3+2=5$$\displaystyle 2+3=5$$\displaystyle 1+4=5$$\displaystyle 0+5=5$
$\displaystyle 5+1=6$$\displaystyle 4+2=6$$\displaystyle 3+3=6$$\displaystyle 2+4=6$$\displaystyle 1+5=6$$\displaystyle 0+6=6$
$\displaystyle 6+1=7$$\displaystyle 5+2=7$$\displaystyle 4+3=7$$\displaystyle 3+4=7$$\displaystyle 2+5=7$$\displaystyle 1+6=7$$\displaystyle 0+7=7$
$\displaystyle 7+1=8$$\displaystyle 6+2=8$$\displaystyle 5+3=8$$\displaystyle 4+4=8$$\displaystyle 3+5=8$$\displaystyle 2+6=8$$\displaystyle 1+7=8$$\displaystyle 0+8=8$
$\displaystyle 8+1=9$$\displaystyle 7+2=9$$\displaystyle 6+3=9$$\displaystyle 5+4=9$$\displaystyle 4+5=9$$\displaystyle 3+6=9$$\displaystyle 2+7=9$$\displaystyle 1+8=9$$\displaystyle 0+9=9$
$\displaystyle 9+1=10$$\displaystyle 8+2=10$$\displaystyle 7+3=10$$\displaystyle 6+4=10$$\displaystyle 5+5=10$$\displaystyle 4+6=10$$\displaystyle 3+7=10$$\displaystyle 2+8=10$$\displaystyle 1+9=10$$\displaystyle 0+10=10$

Таблица вычитания

$\displaystyle 1-1=0$$\displaystyle 2-2=0$$\displaystyle 3-3=0$$\displaystyle 4-4=0$$\displaystyle 5-5=0$$\displaystyle 6-6=0$$\displaystyle 7-7=0$$\displaystyle 8-8=0$$\displaystyle 9-9=0$$\displaystyle 10-10=0$
$\displaystyle 2-1=1$$\displaystyle 3-2=1$$\displaystyle 4-3=1$$\displaystyle 5-4=1$$\displaystyle 6-5=1$$\displaystyle 7-6=1$$\displaystyle 8-7=1$$\displaystyle 9-8=1$$\displaystyle 10-9=1$
$\displaystyle 3-1=2$$\displaystyle 4-2=2$$\displaystyle 5-3=2$$\displaystyle 6-4=2$$\displaystyle 7-5=2$$\displaystyle 8-6=2$$\displaystyle 9-7=2$$\displaystyle 10-8=2$
$\displaystyle 4-1=3$$\displaystyle 5-2=3$$\displaystyle 6-3=3$$\displaystyle 7-4=3$$\displaystyle 8-5=3$$\displaystyle 9-6=3$$\displaystyle 10-7=3$
$\displaystyle 5-1=4$$\displaystyle 6-2=4$$\displaystyle 7-3=4$$\displaystyle 8-4=4$$\displaystyle 9-5=4$$\displaystyle 10-6=4$
$\displaystyle 6-1=5$$\displaystyle 7-2=5$$\displaystyle 8-3=5$$\displaystyle 9-4=5$$\displaystyle 10-5=5$
$\displaystyle 7-1=6$$\displaystyle 8-2=6$$\displaystyle 9-3=6$$\displaystyle 10-4=6$
$\displaystyle 8-1=7$$\displaystyle 9-2=7$$\displaystyle 10-3=7$
$\displaystyle 9-1=8$$\displaystyle 10-2=8$
$\displaystyle 10-1=9$

Таблица сложения однозначных чисел с переходом через десяток в пределах 20

$\displaystyle 9+2=11$$\displaystyle 8+3=11$$\displaystyle 7+4=11$$\displaystyle 6+5=11$
$\displaystyle 9+3=12$$\displaystyle 8+4=12$$\displaystyle 7+5=12$$\displaystyle 6+6=12$
$\displaystyle 9+4=13$$\displaystyle 8+5=13$$\displaystyle 7+6=13$$\displaystyle 6+7=13$
$\displaystyle 9+5=14$$\displaystyle 8+6=14$$\displaystyle 7+7=14$$\displaystyle 6+8=14$
$\displaystyle 9+6=15$$\displaystyle 8+7=15$$\displaystyle 7+8=15$$\displaystyle 6+9=15$
$\displaystyle 9+7=16$$\displaystyle 8+8=16$$\displaystyle 7+9=16$
$\displaystyle 9+8=17$$\displaystyle 8+9=17$
$\displaystyle 9+9=18$

Таблица вычитания с переходом через десяток в пределах 20

$\displaystyle 11-2=9$$\displaystyle 12-3=9$$\displaystyle 13-4=9$$\displaystyle 14-5=9$$\displaystyle 15-6=9$$\displaystyle 16-7=9$$\displaystyle 17-8=9$$\displaystyle 18-9=9$
$\displaystyle 11-3=8$$\displaystyle 12-4=8$$\displaystyle 13-5=8$$\displaystyle 14-6=8$$\displaystyle 15-7=8$$\displaystyle 16-8=8$$\displaystyle 17-9=8$
$\displaystyle 11-4=7$$\displaystyle 12-5=7$$\displaystyle 13-6=7$$\displaystyle 14-7=7$$\displaystyle 15-8=7$$\displaystyle 16-9=7$
$\displaystyle 11-5=6$$\displaystyle 12-6=6$$\displaystyle 13-7=6$$\displaystyle 14-8=6$$\displaystyle 15-9=6$
$\displaystyle 11-6=5$$\displaystyle 12-7=5$$\displaystyle 13-8=5$$\displaystyle 14-9=5$
$\displaystyle 11-7=4$$\displaystyle 12-8=4$$\displaystyle 13-9=4$
$\displaystyle 11-8=3$$\displaystyle 12-9=3$
$\displaystyle 11-9=2$

Таблица сложения

$\displaystyle 10+1=11$
$\displaystyle 11+1=12$$\displaystyle 10+2=12$
$\displaystyle 12+1=13$$\displaystyle 11+2=13$$\displaystyle 10+3=13$
$\displaystyle 13+1=14$$\displaystyle 12+2=14$$\displaystyle 11+3=14$$\displaystyle 10+4=14$
$\displaystyle 14+1=15$$\displaystyle 13+2=15$$\displaystyle 12+3=15$$\displaystyle 11+4=15$$\displaystyle 10+5=15$
$\displaystyle 15+1=16$$\displaystyle 14+2=16$$\displaystyle 13+3=16$$\displaystyle 12+4=16$$\displaystyle 11+5=16$$\displaystyle 10+6=16$
$\displaystyle 16+1=17$$\displaystyle 15+2=17$$\displaystyle 14+3=17$$\displaystyle 13+4=17$$\displaystyle 12+5=17$$\displaystyle 11+6=17$$\displaystyle 10+7=17$
$\displaystyle 17+1=18$$\displaystyle 16+2=18$$\displaystyle 15+3=18$$\displaystyle 14+4=18$$\displaystyle 13+5=18$$\displaystyle 12+6=18$$\displaystyle 11+7=18$$\displaystyle 10+8=18$
$\displaystyle 18+1=19$$\displaystyle 17+2=19$$\displaystyle 16+3=19$$\displaystyle 15+4=19$$\displaystyle 14+5=19$$\displaystyle 13+6=19$$\displaystyle 12+7=19$$\displaystyle 11+8=19$$\displaystyle 10+9=19$
$\displaystyle 19+1=20$$\displaystyle 18+2=20$$\displaystyle 17+3=20$$\displaystyle 16+4=20$$\displaystyle 15+5=20$$\displaystyle 14+6=20$$\displaystyle 13+7=20$$\displaystyle 12+8=20$$\displaystyle 11+9=20$$\displaystyle 10+10=20$

Таблица вычитания

$\displaystyle 11-1=10$$\displaystyle 12-2=10$$\displaystyle 13-3=10$$\displaystyle 14-4=10$$\displaystyle 15-5=10$$\displaystyle 16-6=10$$\displaystyle 17-7=10$$\displaystyle 18-8=10$$\displaystyle 19-9=10$$\displaystyle 20-10=10$
$\displaystyle 12-1=11$$\displaystyle 13-2=11$$\displaystyle 14-3=11$$\displaystyle 15-4=11$$\displaystyle 16-5=11$$\displaystyle 17-6=11$$\displaystyle 18-7=11$$\displaystyle 19-8=11$$\displaystyle 20-9=11$
$\displaystyle 13-1=12$$\displaystyle 14-2=12$$\displaystyle 15-3=12$$\displaystyle 16-4=12$$\displaystyle 17-5=12$$\displaystyle 18-6=12$$\displaystyle 19-7=12$$\displaystyle 20-8=12$
$\displaystyle 14-1=13$$\displaystyle 15-2=13$$\displaystyle 16-3=13$$\displaystyle 17-4=13$$\displaystyle 18-5=13$$\displaystyle 19-6=13$$\displaystyle 20-7=13$
$\displaystyle 15-1=14$$\displaystyle 16-2=14$$\displaystyle 17-3=14$$\displaystyle 18-4=14$$\displaystyle 19-5=14$$\displaystyle 20-6=14$
$\displaystyle 16-1=15$$\displaystyle 17-2=15$$\displaystyle 18-3=15$$\displaystyle 19-4=15$$\displaystyle 20-5=15$
$\displaystyle 17-1=16$$\displaystyle 18-2=16$$\displaystyle 19-3=16$$\displaystyle 20-4=16$
$\displaystyle 18-1=17$$\displaystyle 19-2=17$$\displaystyle 20-3=17$
$\displaystyle 19-1=18$$\displaystyle 20-2=18$
$\displaystyle 20-1=19$

Задание 1:

Задание 2:

Задание 3:

Задание 4:

Задание 5:

Задание 6:

Задание 7:

Как записаться на курс

Для того, чтобы пройти курс по школьной программе, нужно зарегистрироваться, войти в МетаШколу, записаться на выбранный курс и оплатить занятия. Cпособы оплаты.

Задачи олимпиадного характера, нестандартные, повышенной сложности учатся решать в математическом кружке.