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
30 + 10 = ______
6 × 10 = ______
14 + 10 = ______
34 − 10 = ______
47 − 10 = ______
92 − 10 = ______
37 + 20 = ______
97 − 10 = ______
61 + 10 = ______
78 + 10 = ______
19 + 10 = ______
78 + 20 = ______
29 − 10 = ______
72 + 20 = ______
87 − 10 = ______
3 × 10 = ______
23 + 10 = ______
49 + 20 = ______
99 − 10 = ______
32 − 10 = ______
