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
71 + 20 = ______
3 × 10 = ______
18 + 10 = ______
24 − 10 = ______
23 − 10 = ______
70 + 10 = ______
4 × 10 = ______
78 + 10 = ______
36 + 10 = ______
58 + 10 = ______
87 + 10 = ______
1 × 10 = ______
81 − 10 = ______
38 − 10 = ______
81 + 10 = ______
93 − 10 = ______
25 − 10 = ______
62 + 20 = ______
54 − 10 = ______
88 − 10 = ______
