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
7 × 10 = ______
80 + 10 = ______
62 + 20 = ______
58 − 10 = ______
2 × 10 = ______
46 − 10 = ______
57 + 20 = ______
45 + 20 = ______
44 − 10 = ______
19 + 20 = ______
72 − 10 = ______
24 + 20 = ______
17 + 20 = ______
22 + 10 = ______
15 + 20 = ______
98 − 10 = ______
9 × 10 = ______
6 × 10 = ______
29 + 10 = ______
8 × 10 = ______
