在$\bigcirc$里填上“+”“-”“×”或“÷”。
$9\bigcirc20 = 29$
$25\bigcirc2 = 23$
$7\bigcirc7 = 49$
$29\bigcirc7 = 22$
$19\bigcirc7 = 12$
$21\bigcirc5 = 16$
$9\bigcirc12 = 21$
$5\bigcirc13 = 18$
$14\bigcirc2 = 28$
$24\bigcirc5 = 19$
$21\bigcirc3 = 18$
$6\bigcirc20 = 26$
$9\bigcirc20 = 29$
$25\bigcirc2 = 23$
$7\bigcirc7 = 49$
$29\bigcirc7 = 22$
$19\bigcirc7 = 12$
$21\bigcirc5 = 16$
$9\bigcirc12 = 21$
$5\bigcirc13 = 18$
$14\bigcirc2 = 28$
$24\bigcirc5 = 19$
$21\bigcirc3 = 18$
$6\bigcirc20 = 26$
答案:
在$\bigcirc$里填上“+”“-”“×”或“÷”。
$2\bigcirc12 = 24$
$17\bigcirc2 = 15$
$9\bigcirc9 = 1$
$16\bigcirc13 = 3$
$25\bigcirc9 = 16$
$7\bigcirc5 = 2$
$30\bigcirc5 = 6$
$19\bigcirc5 = 14$
$13\bigcirc12 = 1$
$21\bigcirc7 = 3$
$14\bigcirc6 = 8$
$18\bigcirc3 = 21$
$2\bigcirc12 = 24$
$17\bigcirc2 = 15$
$9\bigcirc9 = 1$
$16\bigcirc13 = 3$
$25\bigcirc9 = 16$
$7\bigcirc5 = 2$
$30\bigcirc5 = 6$
$19\bigcirc5 = 14$
$13\bigcirc12 = 1$
$21\bigcirc7 = 3$
$14\bigcirc6 = 8$
$18\bigcirc3 = 21$
答案:
在$\bigcirc$里填上“+”“-”“×”或“÷”。
$8\bigcirc24 = 32$
$11\bigcirc9 = 2$
$9\bigcirc29 = 38$
$28\bigcirc9 = 19$
$7\bigcirc13 = 20$
$6\bigcirc19 = 25$
$21\bigcirc2 = 19$
$24\bigcirc20 = 4$
$27\bigcirc2 = 25$
$18\bigcirc6 = 12$
$9\bigcirc2 = 7$
$19\bigcirc6 = 13$
$8\bigcirc24 = 32$
$11\bigcirc9 = 2$
$9\bigcirc29 = 38$
$28\bigcirc9 = 19$
$7\bigcirc13 = 20$
$6\bigcirc19 = 25$
$21\bigcirc2 = 19$
$24\bigcirc20 = 4$
$27\bigcirc2 = 25$
$18\bigcirc6 = 12$
$9\bigcirc2 = 7$
$19\bigcirc6 = 13$
答案:
想一想,填一填。
8997,8897,9002,8103这四个数中,最接近9000的是( )。
8997,8897,9002,8103这四个数中,最接近9000的是( )。
答案:
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