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
92 − 10 = ______
32 − 10 = ______
4 × 10 = ______
93 − 10 = ______
3 × 10 = ______
12 + 10 = ______
59 − 10 = ______
7 × 10 = ______
43 + 20 = ______
87 + 20 = ______
75 + 10 = ______
55 + 10 = ______
89 + 20 = ______
49 + 10 = ______
6 × 10 = ______
39 − 10 = ______
37 + 20 = ______
82 + 10 = ______
65 + 10 = ______
48 − 10 = ______
