On toan so lop 5 HKI

ÔN TẬP TOÁN SỐ Họ tên:.........................(5/3)
1/ Đặt tính rồi tính
a) 318,46 + 56,79 85, 145 + 255 683 + 7,19 32,84 +189
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

b) 80,01 – 19,98 47,74 – 28,567 20, 5 – 8,85 2004 – 196,8
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

c) 80,5 x 3,2 0,81 x 105 69,2 x 0,98 108,5 x 2,04
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

d) 133,11 :34 176,4 :35 85,68 :36 0,85 : 2,5
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

đ) 837 : 18 627 :25 108 : 22,5 11,18 :21,5
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

2/ Tính giá trị biểu thức:
a) 96,48 - 38,19 + 215 910,5 + 4065 - 2365 36,25 x 2,3 - 49,44 : 12
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

b) 23,8 + 13,02 x 1,03 87,5 - 21,6 x 2,05 119,76 : 24 + 24 x 2,5
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

c) ( 52,01 - 10,89 ) x 0,5 114,75 : 27 x 6,4 18,5 x ( 2,32 + 5,48 ) - 6,8
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

d) 720 : 265 : 5 8,65 x 16,72 : 4 46,3 x 2 - 59,04 : 9
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

e) 65,07 + 323 - 23 199,6 : 25 : 16 8,16 - ( 1,32 + 3,48 ) : 2
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

g) 25,92 : 7,2 + 54 : 5 12,3 - 0,85 : 25 509 - ( 45,3 x 21 - 603 )
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

3/ Tìm y:
a) 12,3 + y = 20 y x 7,25 = 72,5 3,5 + y = 14 - 0,38
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

b) 32,68 x y = 99,3472 63,5 - y = 47,18 6,7 - y = 0,45 x 3
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

c) y - 613 = 218 28,8 : y = 8 25,6 : y = 1,6 x 4
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................

d) y : 3,1 = 2,46 2,1 x y = 10 - 1,6 3,75 : y = 15 : 10
…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
4/ Tìm
:
a)
+
=

-
=

x
=




b)
+
=

:
=

-
=


…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
…………………………………………............................... …………………………………………...............................

c)
x
=

-
= 2 6 :
=


…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
…………………………………………............................... …………………………………………...............................

d) 2 -
=

x
=

: 3 =


…………………………………………............................... …………………………………………............................... …………………………………………......................................................................................
…………………………………………...............................………………................................
…………………………………………...............................………………................................

5/ Điền số
a) 3m2 14dm2 = .............dm2 ; 6m2 8dm2 = ..............m2 ; 2cm2 5mm2 = .........cm2
1ha = ....................m2 ; 2,345ha = .................m2 ; 805m2 = ...............ha

b) 12,44m = ........m.......cm ; 7,4dm = ........dm.......cm ; 3,45km = ..............m
5,38km2 = .............ha; 16,4m2 = .......m2......dm2 ; 3cm2 4 mm2= .........cm2
c) 4