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
41 + 10 = ______
87 − 10 = ______
1 × 10 = ______
8 × 10 = ______
37 + 20 = ______
47 − 10 = ______
72 − 10 = ______
23 − 10 = ______
7 × 10 = ______
43 − 10 = ______
52 + 10 = ______
3 × 10 = ______
15 + 20 = ______
94 − 10 = ______
77 + 20 = ______
9 × 10 = ______
6 × 10 = ______
49 + 20 = ______
64 + 20 = ______
28 + 20 = ______
