Math homework in the second volume of the second grade of primary school
1, oral calculation. 73-9= 57-8 =86+8=
24-6= 18- 10÷5= 42÷7+9=
36+2×6= 25÷( 10÷2)= (54-30)÷4=
2. calculation.
(1) A weight weighs 6 grams. How many grams do seven such weights weigh?
(2) 75g-8g = 54g ÷ 9g = 25g+40g =
8 g× 7 = 67 g-19 g =
3. A pencil weighs12g, and a pen weighs 40g. How many grams are there more pens than pencils?
4. Select the appropriate unit name and fill it on the horizontal line.
A bag of flour weighs 25 _ _ _ _ _ _, and a duck egg is about 60 _ _ _ _.
A truck can carry 4000 _ _ _ _ _ _, and a wax gourd weighs about10 _ _ _ _.
A piece of fruit candy weighs about 3 _ _ _ _ _, and a ball weighs about 50 _ _ _ _.
Dad weighs about 70 _ _ _ _ _ Four apples are about 500 _ _ _ _.
5. calculation.
300g+1600g =? 2000 g +6500 g -2 kg =
4000 g+1070 g =? 5040g+3100g =
72 grams ÷8=? 5 kg +700 g =
5 1 g ÷7=？ 7 kg ×9=
1 kg +64 g ÷8=？ 63 kg ÷7=
6. Application questions:
(1) Ouyang takes two toys and weighs them together. * * * weighs 30 kilograms. Now people know that each toy weighs 2 kilograms. What is Ouyang's weight?
(2) The canteen delivers 3200 kg of coal every day and 2400 kg of coal the next day. It is planned that the coal will burn for 7 months. How many kilograms of coal per month on average?
(3) The oil press squeezes 8 kilograms of oil per hour. This oil press has been working for 7 hours. How many kilograms does it take to complete the oil extraction task of 100 kg?
(4) A nickel coin weighs 2 grams, and a small square has 4 points and 5 points. How many grams does * * * weigh?
Math homework in the second volume of the second grade of primary school
First, the oral calculation problem is 2×4=
160+650=
160+690=
1 10+30=
13+46=
160+660=
4 10- 180=
200+78=
12÷6=
1 10+2 10=
2 10- 190=
860- 150=
1 10+90=
1 10+220=
1 10+780=
28÷4=
Second, use vertical calculation.
450+290=
600+380=
750-380=
170+430=
570+440=
620-270=
Third, off-model calculation.
1 10+ 180-508×2÷4
140+(570-200)
Math homework in the second volume of the second grade of primary school
First, oral calculation. 70-25= 4300+2700= 800-540= 80+720=
900+700= 18÷5= 25÷5= 9×9=
15-4×3= 24-9+ 17= 30÷( 15-9)= 8×9+ 12=
Fill in the blanks.
1 and 5408 write (), which is a number of ().
2. The number of six thousand and four is (), and 10 is ().
3. The two numbers adjacent to 2300 are () and ().
4. The four digits of1,8, 0 and 3 are (), the smallest four digits are (), and their digits are all ().
5. Number 7999, 9908, 10000, 8957 and 9889 in descending order:
()& gt()& gt()& gt()& gt()。
6. Fill in the correct symbols or numbers.
4cm =()mm 96○92- 17 999m○ 1km
40dm =()cm 2405○2400+5 40+ 1000○ 1400
7. Fill in the appropriate units.
A piece of rubber is 30 ()
This table is 8 feet high.
Xiao Ming is 1()20 ()
The Oriental Pearl TV Tower is 468 ()
Third, calculation.
1, column vertical calculation.
39+35= 1278-244=
6 100-2984= 803+7457=
Fourth, off-type calculation.
(66+6)÷8 70-36÷9 3000-( 175+825)