Упр.8 Параграф 14 Часть 1 ГДЗ Рудницкая Юдачева 4 класс (2023) (Математика)

Вычислите устно.

$$2\,500+60+8$$
$$12\cdot4$$
$$100:25$$
$$7+100+1\,000$$
$$100\cdot5$$
$$18:3$$
$$9\,600+400$$
$$6\cdot40$$
$$180:3$$
$$3\,000+9\,000$$
$$11\cdot9$$
$$180:30$$
$$1\,000:100$$
$$84:42$$
$$1\,800:30$$

Вычислим значения выражений по порядку:

$$2\,500+60+8=2\,568$$
$$7+100+1\,000=1\,107$$
$$9\,600+400=10\,000$$
$$3\,000+9\,000=12\,000$$
$$1\,000:100=10$$
$$12\cdot 4=48$$
$$100\cdot 5=500$$
$$6\cdot 40=240$$
$$11\cdot 9=99$$
$$84:42=2$$
$$100:25=4$$
$$18:3=6$$
$$180:3=60$$
$$180:30=6$$
$$1\,800:30=60$$

Ответ

2568; 1107; 10000; 12000; 10; 48; 500; 240; 99; 2; 4; 6; 60; 6; 60.