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
70 + 20 = ______
34 + 20 = ______
16 + 10 = ______
44 + 20 = ______
59 + 10 = ______
4 × 10 = ______
38 + 10 = ______
8 × 10 = ______
86 + 20 = ______
57 − 10 = ______
6 × 10 = ______
9 × 10 = ______
2 × 10 = ______
25 − 10 = ______
93 − 10 = ______
3 × 10 = ______
37 + 10 = ______
81 + 10 = ______
80 + 20 = ______
51 − 10 = ______
