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
7 × 10 = ______
52 + 20 = ______
2 × 10 = ______
47 + 10 = ______
38 + 20 = ______
39 + 10 = ______
84 + 10 = ______
38 + 10 = ______
87 − 10 = ______
93 − 10 = ______
82 − 10 = ______
83 + 10 = ______
26 + 10 = ______
13 + 10 = ______
23 + 10 = ______
45 − 10 = ______
74 − 10 = ______
28 + 10 = ______
58 − 10 = ______
1 × 10 = ______
