Question

8.Сравни.
258 × a □ 258 × (a + 1)
128 × 5 □ 128 × 4 + 128
471 × 9□471 - 10 + 471
582 002 : 2 □ 58 202 : 2

5 × 20 □ 99 - 1
589 + 4 × О □ 589 × 0 + 4
800 000 - 1 □ 799 999 + 1
125 004 : 3 □ 1 250 040 : 30​

Answer 1

$258 cdot a,,boxed{?},,258 cdot (a + 1)\258 cdot a,,boxed{?},,258 cdot a + 258\0,,boxed{?},,258\0,,boxed{<},,258$

$128cdot5,,boxed{?},,128cdot4+128\128cdot5,,boxed{?},,128cdot(4+1)\128cdot5,,boxed{?},,128cdot5\128cdot5,,boxed{=},,128cdot5$

$471cdot9,,boxed{?},,471-10+471\471cdot9,,boxed{?},,471cdot2-10\471cdot9,,boxed{>},,471cdot2-10$

$582,002:2,,boxed{?},,58,202:2\582,002,,boxed{?},,58,202\582,002,,boxed{>},,58,202$

$5cdot20,,boxed{?},,99-1\100,,boxed{?},,98\100,,boxed{>},,98$

$589+4cdot0,,boxed{?},,589cdot0+4\589+0,,boxed{?},,0+4\589,,boxed{?},,4\589,,boxed{>},,4$

$800,000-1,,boxed{?},,799,999+1\799,999,,boxed{?},,800,000\799,999,,boxed{<},,800,000$

$125,004:3,,boxed{?},,1,250,040:30\125,004:3,,boxed{?},,125,004:3\125,004:3,,boxed{=},,125,004:3$

Answer 2

471×9 < 471×10+471