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
76 + 20 = ______
40 − 10 = ______
35 − 10 = ______
73 + 20 = ______
49 + 10 = ______
74 + 10 = ______
37 + 20 = ______
4 × 10 = ______
35 + 10 = ______
82 − 10 = ______
1 × 10 = ______
85 − 10 = ______
16 + 20 = ______
28 + 20 = ______
44 + 10 = ______
48 + 10 = ______
77 + 10 = ______
46 − 10 = ______
38 − 10 = ______
27 + 20 = ______
