Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
43 + 20 = ______
70 + 20 = ______
9 × 10 = ______
25 − 10 = ______
39 + 20 = ______
84 + 20 = ______
62 − 10 = ______
96 − 10 = ______
45 + 20 = ______
66 + 10 = ______
1 × 10 = ______
22 − 10 = ______
7 × 10 = ______
2 × 10 = ______
48 + 20 = ______
28 − 10 = ______
51 + 10 = ______
43 + 10 = ______
46 + 20 = ______
37 + 10 = ______
