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
2 × 10 = ______
9 × 10 = ______
28 + 10 = ______
32 + 10 = ______
63 + 20 = ______
7 × 10 = ______
1 × 10 = ______
89 − 10 = ______
6 × 10 = ______
94 − 10 = ______
44 + 10 = ______
76 + 20 = ______
15 + 10 = ______
37 − 10 = ______
24 − 10 = ______
62 + 10 = ______
50 + 10 = ______
13 + 20 = ______
5 × 10 = ______
46 + 20 = ______
