"188+21加上112+279等于几"...188+21加上112+279等于几

　"229-8加171-117等于几"...229-8加171-117等于几

　"284-123加116-117等于几"...284-123加116-117等于几

　"118+121加1727+137等于几"...118+121加1727+137等于几

　"284-1123加116-1等于几"...284-1123加116-1等于几

　"212+187等于几"...212+187等于几

　"213+215加217+219+221等于几"...213+215加217+219+221等于几

　"183+211加201+210加210等于几"...183+211加201+210加210等于几

　"21+143加181+20等于几"...21+143加181+20等于几

　"288+86加114+212等于几"...288+86加114+212等于几