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 = ______
65 − 10 = ______
65 + 10 = ______
49 + 20 = ______
38 − 10 = ______
5 × 10 = ______
66 + 10 = ______
29 + 10 = ______
34 + 10 = ______
17 + 20 = ______
23 + 10 = ______
40 + 10 = ______
37 + 20 = ______
82 − 10 = ______
58 − 10 = ______
46 + 10 = ______
4 × 10 = ______
73 − 10 = ______
85 − 10 = ______
70 + 20 = ______
