數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版課件

1、數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版三峽工程青島版五年級(jí)數(shù)學(xué)上冊(cè)課件青島版五年級(jí)數(shù)學(xué)上冊(cè)課件除數(shù)是整數(shù)的小數(shù)除法除數(shù)是整數(shù)的小數(shù)除法數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版“長(zhǎng)城號(hào)長(zhǎng)城號(hào)”豪華游輪通豪華游輪通過(guò)五級(jí)船閘過(guò)五級(jí)船閘需用需用2.52.5小時(shí)小時(shí)數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版. 5 8.5 58 5 35 3501 1 7.454.764=58.85=4.76474363601191.1911.7數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版小數(shù)除法的方法：小數(shù)除法的方法：1、先按照整數(shù)除法去除、先按照整數(shù)除法去除 。2、個(gè)位除完就在商的個(gè)位后面點(diǎn)上小數(shù)點(diǎn)并、個(gè)位除完就在商的

2、個(gè)位后面點(diǎn)上小數(shù)點(diǎn)并與被除數(shù)的小數(shù)點(diǎn)對(duì)齊。與被除數(shù)的小數(shù)點(diǎn)對(duì)齊。數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版每袋12.55元每袋8.84元8.844=12.555=2.21(元)2.51(元)2.212.51答：第一種筆便宜。數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版“長(zhǎng)城號(hào)長(zhǎng)城號(hào)”豪華游輪通豪華游輪通過(guò)五級(jí)船閘過(guò)五級(jí)船閘需用需用2.52.5小時(shí)小時(shí)數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版020.辨別辨別:在商小于在商小于1的式子后面打的式子后面打“”再計(jì)算驗(yàn)證結(jié)果再計(jì)算驗(yàn)證結(jié)果4.55( ) 1.757( ) 4.863( ) 0.968( )5 4.5.04 51.7571 43953 504.

3、86313 181 8.5662600 0 0.9680.18 161620數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版總結(jié)方法整數(shù)部分比除數(shù)小，要在個(gè)整數(shù)部分比除數(shù)小，要在個(gè)位商位商“0”占位占位數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版20217.1你能接著算下去嗎？你能接著算下去嗎？6.213=6.236 210商的中間不夠除，也要商商的中間不夠除，也要商“0”占位。占位。2.07數(shù)學(xué)上冊(cè)除數(shù)是整數(shù)的小數(shù)除法1課件青島版本節(jié)課知識(shí)要點(diǎn)回顧：本節(jié)課知識(shí)要點(diǎn)回顧：小數(shù)除法的方法：小數(shù)除法的方法：1、先按照整數(shù)除法去除、先按照整數(shù)除法去除 。2、個(gè)位除完就在商的個(gè)位后面點(diǎn)上小數(shù)點(diǎn)、個(gè)位除完就在商的個(gè)位后面點(diǎn)上小數(shù)點(diǎn)并與被除數(shù)的小數(shù)點(diǎn)對(duì)齊。并與被除數(shù)的小數(shù)點(diǎn)對(duì)齊。3、整數(shù)部分比除數(shù)小，要在個(gè)位商、整數(shù)部分比