1 вариант: 1) Вычислите: 17:17 = 1 0.1-0 = 0 49:1-49 32-1-32 0.1-0 = 0 0.23-0 = 0 87.87-1 = 1 4:1-4 = 4 2) Решите уравнения: x:14=0 x:45=1 x*65=65 98:x=1 3) Сравните: 0.19 < 19.1 76-1 = 76:1 65-1 ? 65.65 28:1 ? 28:0

1 вариант

1) Вычислите:

\( 17 \div 17 = 1 \)

\( 0.1 - 0 = 0 \)

\( 49 \div 1 = 49 \)

\( 32 - 1 = 31 \)

\( 0.1 \div 0 \) — ошибка, на ноль делить нельзя.

\( 0.23 - 0 = 0.23 \)

\( 87 \div 87 = 1 \)

\( 4 \div 1 = 4 \)

2) Решите уравнения:

\( x \div 14 = 0 \)

\( x = 0 \times 14 \)

\( x = 0 \)

\( x \div 45 = 1 \)

\( x = 1 \times 45 \)

\( x = 45 \)

\( x \times 65 = 65 \)

\( x = 65 \div 65 \)

\( x = 1 \)

\( 98 \div x = 1 \)

\( x = 98 \div 1 \)

\( x = 98 \)

3) Сравните:

\( 0.19 < 19.1 \)

\( 76 - 1 \) = \( 75 \)

\( 76 \div 1 = 76 \)

\( 76 - 1 < 76 \div 1 \)

\( 65 - 1 = 64 \)

\( 65.65 \)

\( 65 - 1 < 65.65 \)

\( 28 \div 1 = 28 \)

\( 28 - 0 = 28 \)

\( 28 \div 1 = 28 - 0 \)