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
28 + 20 = ______
5 × 10 = ______
2 × 10 = ______
44 + 10 = ______
24 + 10 = ______
46 + 20 = ______
91 − 10 = ______
3 × 10 = ______
57 + 10 = ______
17 + 10 = ______
4 × 10 = ______
51 + 20 = ______
1 × 10 = ______
63 + 10 = ______
8 × 10 = ______
22 + 20 = ______
36 + 20 = ______
66 + 20 = ______
94 − 10 = ______
32 − 10 = ______
