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
8 × 10 = ______
49 + 10 = ______
50 + 10 = ______
80 − 10 = ______
59 − 10 = ______
84 − 10 = ______
4 × 10 = ______
70 + 20 = ______
56 + 10 = ______
82 + 20 = ______
55 + 10 = ______
17 + 10 = ______
13 + 10 = ______
93 − 10 = ______
15 + 10 = ______
26 − 10 = ______
9 × 10 = ______
47 + 10 = ______
75 + 10 = ______
50 − 10 = ______
