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
81 − 10 = ______
6 × 10 = ______
32 − 10 = ______
87 − 10 = ______
9 × 10 = ______
5 × 10 = ______
1 × 10 = ______
79 − 10 = ______
30 + 10 = ______
16 + 10 = ______
26 − 10 = ______
94 − 10 = ______
75 + 20 = ______
69 − 10 = ______
38 − 10 = ______
68 + 10 = ______
89 + 10 = ______
36 + 20 = ______
86 + 20 = ______
35 + 10 = ______
