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
73 + 10 = ______
30 + 20 = ______
82 + 20 = ______
54 + 20 = ______
38 − 10 = ______
2 × 10 = ______
53 + 20 = ______
34 − 10 = ______
12 + 10 = ______
8 × 10 = ______
86 + 10 = ______
62 − 10 = ______
28 − 10 = ______
51 + 10 = ______
6 × 10 = ______
44 + 10 = ______
78 + 20 = ______
51 + 20 = ______
46 + 10 = ______
95 − 10 = ______
