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
3 × 10 = ______
75 − 10 = ______
68 − 10 = ______
16 + 10 = ______
57 − 10 = ______
4 × 10 = ______
7 × 10 = ______
99 − 10 = ______
21 + 10 = ______
41 − 10 = ______
80 + 10 = ______
8 × 10 = ______
26 − 10 = ______
1 × 10 = ______
80 − 10 = ______
39 − 10 = ______
35 − 10 = ______
71 + 20 = ______
52 + 20 = ______
43 + 20 = ______
