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
58 + 10 = ______
28 − 10 = ______
32 + 20 = ______
6 × 10 = ______
9 × 10 = ______
36 + 20 = ______
23 − 10 = ______
8 × 10 = ______
32 − 10 = ______
71 + 10 = ______
79 + 20 = ______
52 − 10 = ______
73 + 20 = ______
30 − 10 = ______
69 − 10 = ______
46 − 10 = ______
15 + 10 = ______
2 × 10 = ______
91 − 10 = ______
43 + 20 = ______
