《2025年速算天地数学口算心算六年级上册苏教版》

$1^2=$1
$17^2=$289
$2^2=$4
$18^2=$324
$3^2=$9
$19^2=$361
$4^2=$16
$20^2=$400
$5^2=$25
$0.1^2=$0.01
$6^2=$36
$0.2^2=$0.04
$7^2=$49
$0.3^2=$0.09
$8^2=$64
$0.4^2=$0.16
$9^2=$81
$0.5^2=$0.25
$10^2=$100
$0.6^2=$0.36
$11^2=$121
$0.7^2=$0.49
$12^2=$144
$0.8^2=$0.64
$13^2=$169
$0.9^2=$0.81
$14^2=$196
$0.02^2=$0.0004
$15^2=$225
$1.1^2=$1.21
$16^2=$256
$1.3^2=$1.69

答案： 解析：
这些问题都是求一个数的平方，即该数乘以它自身。例如，$1^2$ 就是 1 乘以 1，$17^2$ 就是 17 乘以 17，以此类推。
答案：
$1^2= 1$
$17^2= 289$
$2^2= 4$
$18^2= 324$
$3^2= 9$
$19^2= 361$
$4^2= 16$
$20^2= 400$
$5^2= 25$
$0.1^2= 0.01$
$6^2= 36$
$0.2^2= 0.04$
$7^2= 49$
$0.3^2= 0.09$
$8^2= 64$
$0.4^2= 0.16$
$9^2= 81$
$0.5^2= 0.25$
$10^2= 100$
$0.6^2= 0.36$
$11^2= 121$
$0.7^2= 0.49$
$12^2= 144$
$0.8^2= 0.64$
$13^2= 169$
$0.9^2= 0.81$
$14^2= 196$
$0.02^2= 0.0004$
$15^2= 225$
$1.1^2= 1.21$
$16^2= 256$
$1.3^2= 1.69$