> 数学 >
观察例题→发现规律→按照要求答题.
(120×120)-(119×121)=1,(120×120)-(118×122)=4,
(120×120)-(117×123)=9,(120×120)-(116×124)=16,

(1)(120×120)-(112×128)=______.
(2)(120×120)-(______×______)=144.
人气:229 ℃ 时间:2020-06-11 04:04:21
解答
(120-112)×(128-120)=8×8=64;
12×12=144,
120-12=108,
120+12=132,
120×120-108×132=144;
故答案为:64,108,132.
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版